Prof. Alexis V. Kudryashov Profile

Prof. Alexis V. Kudryashov

Head of Laboratory at Sadovsky Institute of Geosphere Dynamics, RAS

SPIE Involvement:

Conference Co-Chair | Author | Editor

Area of Expertise:

Adaptive Optics , Laser resonators , Interferometry , wavefront sensors , turbulence , deformable mirrors

Websites:

Company Website

Publications (171)

Proceedings Article | 1 October 2024 Poster + Paper

Flat-top and doughnut-like laser beam profiles: an overview of the modified algorithm for converting the arbitrary shaped beam using phase only spatial light modulator

Ilya Galaktionov, Julia Sheldakova, Alexander Nikitin, Vladimir Toporovsky, Pavel Kuzmitsky, Alexis Kudryashov

Proceedings Volume 13130, 131300J (2024) https://doi.org/10.1117/12.3028201

KEYWORDS: Deformable mirrors, Spatial light modulators, Signal intensity, Wavefront sensors, Wavefronts, Phase distribution, Laser cutting, Adaptive optics, Temperature distribution, Mirrors

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Proceedings Article | 1 October 2024 Poster + Paper

Dual-loop adaptive optical system for compensation of the low- and high-order wavefront aberrations

Vladimir Toporovsky, Ilya Galaktionov, Alexander Nikitin, Vadim Samarkin, Pavel Kuzmitsky, Alexis Kudryashov

Proceedings Volume 13130, 131300I (2024) https://doi.org/10.1117/12.3028589

KEYWORDS: Deformable mirrors, Adaptive optics, Wavefronts, Wavefront aberrations, Atmospheric optics, Electrodes, Actuators, Turbulence, Free space optics, Design

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Proceedings Article | 12 March 2024 Poster + Paper

Atmospheric turbulence generator: software and hardware implementation of Kolmogorov phase screen simulation system

Ilya Galaktionov, Julia Sheldakova, Vladimir Toporovsky, Alexis Kudryashov

Proceedings Volume 12871, 128710K (2024) https://doi.org/10.1117/12.3014325

KEYWORDS: Deformable mirrors, Adaptive optics, Atmospheric propagation, Atmospheric optics, Wavefronts, Atmospheric turbulence, Laser beam propagation, Wavefront sensors, Free space optics, Turbulence

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Proceedings Article | 12 March 2024 Poster + Paper

Wide-aperture multichannel Shack-Hartmann sensor for multispectral wavefront measurements

Ilya Galaktionov, Alexander Nikitin, Julia Sheldakova, Vladimir Toporovsky, Alexis Kudryashov

Proceedings Volume 12871, 128710L (2024) https://doi.org/10.1117/12.3014349

KEYWORDS: Wavefront sensors, Adaptive optics, Wavefronts, Atmospheric propagation, Atmospheric optics, Sensors, Laser beam propagation, Laser radiation, Free space optics, Atmospheric particles

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Proceedings Article | 12 March 2024 Poster + Paper

Thermomechanical behavior of stacked-actuator deformable mirrors under incident high-power laser radiation

Vladimir Toporovsky, Pavel Kuzmitsky, Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova

Proceedings Volume 12871, 128710M (2024) https://doi.org/10.1117/12.3023344

KEYWORDS: Deformable mirrors, Laser radiation, Heatsinks, Actuators, Wavefronts, High power lasers, Mirrors, Reflection, Mirror surfaces, Surface finishing

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Proceedings Article | 12 March 2024 Poster + Paper

Beam-path alignment system for high-power laser setups

Vladimir Toporovsky, Ilya Galaktionov, Alexander Alexandrov, Alexis Kudryashov, Julia Sheldakova

Proceedings Volume 12871, 128710N (2024) https://doi.org/10.1117/12.3023351

KEYWORDS: Cameras, Wavefronts, High power lasers, Semiconductor lasers, Near field, Kinematics, Laser radiation, Wavefront sensors, Near field optics, Mirrors

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Proceedings Article | 17 October 2023 Paper

Stroke simulation of control elements in cartridge-type deformable mirror for correction of aberrations of laser radiation passed through turbulent medium

Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin, Ilya Galaktionov, Anatoliy Malykhin, Anatoliy Panich

Proceedings Volume 12780, 127800S (2023) https://doi.org/10.1117/12.2689908

KEYWORDS: Actuators, Deformable mirrors, Switching, Reliability, Laser radiation, Wavefront aberrations, Manufacturing, Atmospheric propagation, Refractive index, Control systems

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Proceedings Article | 17 October 2023 Paper

Overcoming challenges in laser beam focusing through a moderately scattering medium: stacked-actuator vs. bimorph deformable mirror

Ilya Galaktionov, Julia Sheldakova, Vladimir Toporovsky, Alexey Rukosuev, Alexis Kudryashov

Proceedings Volume 12780, 127800P (2023) https://doi.org/10.1117/12.2689613

KEYWORDS: Deformable mirrors, Laser scattering, Electrodes, Light scattering, Wavefronts, Mirrors, Refractive index, Ocean optics, Laser radiation

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Proceedings Article | 26 September 2023 Poster + Paper

Adaptive system with Zernike-based hill-climbing algorithm for super Gaussian and doughnut-like beam shaping

Ilya Galaktionov, Alexander Nikitin, Julia Sheldakova, Vladimir Toporovsky, Alexander Laskin, Alexis Kudryashov

Proceedings Volume 12667, 126670J (2023) https://doi.org/10.1117/12.2676756

KEYWORDS: Adaptive optics, Wavefront sensors, Spatial light modulators, Wavefronts, Sensors, Light scattering, Beam shaping, Scattering media, Phase distribution, Laser scattering

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Proceedings Article | 26 September 2023 Poster + Paper

Cartridge-type piezostack deformable mirror with reduced cross-section of control elements

Vladimir Toporovsky, Ilya Galaktionov, Vadim Samarkin, Alexis Kudryashov, Alexander Panich, Anatoliy Malykhin, Alexander Laskin

Proceedings Volume 12667, 126670K (2023) https://doi.org/10.1117/12.2676744

KEYWORDS: Actuators, Deformable mirrors, Switching, Manufacturing, Control systems, Reliability, Design and modelling, Mathematical modeling, Deformation, Wavefronts

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Proceedings Article | 26 September 2023 Poster + Paper

Wavefront control with high-spatial cartridge-type piezostack deformable mirror

Vladimir Toporovsky, Ilya Galaktionov, Vadim Samarkin, Alexis Kudryashov, Alexander Panich, Anatoliy Malykhin, Alexander Laskin

Proceedings Volume 12667, 126670L (2023) https://doi.org/10.1117/12.2676879

KEYWORDS: Deformable mirrors, Wavefronts, Actuators, Mixtures, Mirror surfaces, Ferroelectric materials, Deformation, Control systems, Capacitance, Wavefront sensors

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Proceedings Article | 26 September 2023 Poster + Paper

Software and hardware implementation of the algorithm for 2-mirrors automatic laser beam alignment system

Ilya Galaktionov, Vladimir Toporovsky, Alexander Nikitin, Alexey Rukosuev, Alex Alexandrov, Julia Sheldakova, Alexander Laskin, Alexis Kudryashov

Proceedings Volume 12667, 126670I (2023) https://doi.org/10.1117/12.2676742

KEYWORDS: Near field, Automatic alignment, Wavefront sensors, Control systems, Laser systems engineering, Wavefronts, Sensors, Mirrors, Algorithm development, Reflection

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Proceedings Article | 8 December 2022 Paper

Piezoelectric bimorph mirrors with various number of electrodes for scattered laser beam focusing

Ilya Galaktionov, Julia Sheldakova, Vladimir Toporovsky, Alexis Kudryashov

Proceedings Volume 12341, 123411T (2022) https://doi.org/10.1117/12.2642942

KEYWORDS: Mirrors, Electrodes, Light scattering, Wavefronts, Scattering, Sensors, Laser scattering, Wavefront sensors

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Proceedings Article | 8 December 2022 Paper

Deformable piezoelectric mirrors with high density of control elements

Vladimir Toporovskiy, Alexis Kudryashov, Julia Sheldakova, Ilya Galaktionov, Vadim Samarkin

Proceedings Volume 12341, 123411I (2022) https://doi.org/10.1117/12.2645061

KEYWORDS: Mirrors, Deformable mirrors, Electrodes, Wavefronts, Actuators, Copper, Surface finishing, Capacitance, Wavefront aberrations, Ultrasonics

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Proceedings Article | 3 October 2022 Presentation + Paper

Modified Fizeau interferometer with the polynomial and FFT smoothing algorithm

Ilya Galaktionov, Julia Sheldakova, Vladimir Toporovsky, Alexis Kudryashov

Proceedings Volume 12223, 122230T (2022) https://doi.org/10.1117/12.2632181

KEYWORDS: Reconstruction algorithms, Fizeau interferometers, Wavefronts, Interferometers, Interferometry, Fourier transforms, Detection and tracking algorithms

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Proceedings Article | 3 October 2022 Poster + Presentation + Paper

Efficient technique to measure the concentration value of a scattering suspension using Bouguer-Lambert-Beer law

Ilya Galaktionov, Julia Sheldakova, Vladimir Toporovsky, Alexis Kudryashov

Proceedings Volume 12216, 122160U (2022) https://doi.org/10.1117/12.2632182

KEYWORDS: Scattering, Laser scattering, Sensors, Light scattering, CCD image sensors, CCD cameras, Atmospheric modeling

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Proceedings Article | 3 October 2022 Presentation + Paper

Phase-only spatial light modulator for focusing a moderately scattered visible range laser beam

Ilya Galaktionov, Julia Sheldakova, Alexander Nikitin, Vladimir Toporovsky, Alexis Kudryashov

Proceedings Volume 12218, 1221808 (2022) https://doi.org/10.1117/12.2631997

KEYWORDS: Scattering, Light scattering, Laser scattering, Spatial light modulators, Wavefronts, Adaptive optics, Monte Carlo methods, Sensors, Refractive index

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Proceedings Article | 3 October 2022 Presentation + Paper

Bimorph deformable mirror parameters optimization in atmospheric applications

Vladimir Toporovsky, Vadim Samarkin, Alexis Kudryashov, Ilya Galaktionov

Proceedings Volume 12218, 1221806 (2022) https://doi.org/10.1117/12.2632914

KEYWORDS: Mirrors, Deformable mirrors, Wavefronts, Atmospheric propagation, Refractive index, Electrodes, Control systems, Atmospheric turbulence, Turbulence, Atmospheric optics

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Proceedings Article | 3 October 2022 Presentation + Paper

Evaluation of bimorph deformable mirror performance through Zernike polynomials reconstruction

Vladimir Toporovsky, Alexis Kudryashov, Alexey Rukosuev, Ilya Galaktionov

Proceedings Volume 12218, 1221807 (2022) https://doi.org/10.1117/12.2632915

KEYWORDS: Deformable mirrors, Electrodes, Zernike polynomials, Wavefronts, Mirrors, Copper, Silver, Resistance, Laser ablation, Ultrasonics

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Proceedings Article | 3 October 2022 Poster + Presentation + Paper

Numerical analysis of efficiency of light focusing through a moderately scattering medium with the use of deformable mirrors

Ilya Galaktionov, Julia Sheldakova, Vladimir Toporovsky, Alexis Kudryashov

Proceedings Volume 12218, 122180C (2022) https://doi.org/10.1117/12.2632681

KEYWORDS: Light scattering, Mirrors, Scattering, Deformable mirrors, Laser scattering, Electrodes, Scattering media, Geometrical optics, Dynamic light scattering

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Proceedings Article | 4 March 2022 Presentation + Paper

Shack-Hartmann sensor with B-spline approximation technique

Ilya Galaktionov, Alexander Nikitin, Julia Sheldakova, Alexis Kudryashov

Proceedings Volume 11987, 119870K (2022) https://doi.org/10.1117/12.2614658

KEYWORDS: Wavefronts, Wavefront sensors, Sensors, Zernike polynomials, Monochromatic aberrations, Wave propagation, Reconstruction algorithms

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Proceedings Article | 4 March 2022 Presentation + Paper

Calibration of a Shack-Hartmann wavefront sensor using spherical wavefronts from a point source

Alexander Nikitin, Ilya Galaktionov, Julia Sheldakova, Alexis Kudryashov, Dmitrii Denisov, Anastasiya Zolotukhina

Proceedings Volume 11987, 119870J (2022) https://doi.org/10.1117/12.2615161

KEYWORDS: Wavefronts, Sensors, Calibration, Spherical lenses, Wavefront sensors, Microlens, Cameras, Digital cameras, Distance measurement, Sensor calibration

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Proceedings Article | 4 March 2022 Presentation + Paper

Wide-aperture deformable mirror for correcting and improving focusing of multi-petawatt Ti:Sa laser beam

Vladimir Toporovsky, Vadim Samarkin, Alexis Kudryashov, Alexander Alexandrov, Ilya Galaktionov, Alexander Nikitin, Alexey Rukosuev, Julia Sheldakova

Proceedings Volume 11987, 119870F (2022) https://doi.org/10.1117/12.2614522

KEYWORDS: Mirrors, Electrodes, Deformable mirrors, Wavefronts, Distortion, Optical amplifiers, Zernike polynomials, Wavefront sensors, Phase shifts, Optical components

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Proceedings Article | 4 March 2022 Poster + Presentation + Paper

Statistical analysis of a wavefront distorted by laboratory turbulence in terms of Zernike polynomials

Julia Sheldakova, Vadim Belousov, Alexander Nikitin, Vladimir Toporovsky, Alexey Rukosuev, Alexis Kudryashov

Proceedings Volume 11987, 119870L (2022) https://doi.org/10.1117/12.2614533

KEYWORDS: Zernike polynomials, Turbulence, Statistical analysis, Wavefronts, Monochromatic aberrations, Wavefront sensors, Adaptive optics, Microlens array, Field programmable gate arrays, Mirrors

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Proceedings Article | 4 March 2022 Poster + Presentation + Paper

Robust stack-array deformable mirror for laser beam control

Vladimir Toporovsky, Vadim Samarkin, Alexis Kudryashov, Alexander Panich, Alexander Sokallo, Anatoliy Malykhin, Julia Sheldakova

Proceedings Volume 11987, 119870M (2022) https://doi.org/10.1117/12.2614509

KEYWORDS: Actuators, Deformable mirrors, Mirrors, Wavefronts, Surface finishing, Glasses, Beam controllers, Coating, Multilayers, Manufacturing

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Proceedings Article | 4 March 2022 Poster + Presentation + Paper

The method of designing an optical-electronic imaging system for correcting the parameters of the wavefront of laser radiation transmitted through a turbulent atmosphere

V. Toporovsky, P. Lyuy, D. Denisov, A. Zolotukhina, A. Nikitin, A. Kudryashov

Proceedings Volume 11987, 119870N (2022) https://doi.org/10.1117/12.2616105

KEYWORDS: Atmospheric optics, Optical design, Wavefronts, Turbulence, Refractive index, Imaging systems, Wavefront sensors, Atmospheric modeling, Adaptive optics, Image analysis

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Proceedings Article | 4 March 2022 Presentation + Paper

FPGA based laser beam stabilization system

Julia Sheldakova, Ilya Galaktionov, Alexander Nikitin, Alexander Alexandrov, Alexis Kudryashov, Vadim Belousov, Alexey Rukosuev

Proceedings Volume 11987, 119870C (2022) https://doi.org/10.1117/12.2614525

KEYWORDS: Field programmable gate arrays, Mirrors, Photodiodes, Data communications, Zernike polynomials, Wavefronts, Laser systems engineering, Turbulence, Data conversion, Wavefront sensors

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Proceedings Article | 16 December 2021 Paper

Analysis of laboratory turbulence by spectral methods

Alexey Rukosuev, Vadim Belousov, Alexander Nikitin, Julia Sheldakova, Alexis Kudryashov

Proceedings Volume 11916, 119161H (2021) https://doi.org/10.1117/12.2603463

KEYWORDS: Wavefronts, Turbulence, Zernike polynomials, Mirrors, Wavefront sensors, Wavefront aberrations, Fourier transforms, Field programmable gate arrays

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Proceedings Article | 16 December 2021 Paper

Laser beam focusing through a moderately scattering medium using LCOS-SLM

Ilya Galaktionov, Alexander Nikitin, Julia Sheldakova, Alexis Kudryashov

Proceedings Volume 11916, 119161L (2021) https://doi.org/10.1117/12.2605028

KEYWORDS: Scattering, Light scattering, Spatial light modulators, Wavefronts, Zernike polynomials, Refractive index

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Proceedings Article | 16 December 2021 Paper

Investigation of properties of the stacked-actuator deformable mirror made of the piezoceramic combs

Vladimir Toporovskiy, Alexis Kudryashov, Vadim Samarkin, Anatoliy Panich, Alexander Sokallo, Anatoliy Malykhin

Proceedings Volume 11916, 119161I (2021) https://doi.org/10.1117/12.2603503

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Proceedings Article | 1 August 2021 Poster + Paper

B-spline approximation of a wavefront measured by Shack-Hartmann sensor

Ilya Galaktionov, Alexander Nikitin, Julia Sheldakova, Alexis Kudryashov

Proceedings Volume 11818, 118180N (2021) https://doi.org/10.1117/12.2598249

KEYWORDS: Wavefronts, Wavefront sensors, Zernike polynomials, Optical testing, Shape analysis, Reconstruction algorithms

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Proceedings Article | 1 August 2021 Poster + Paper

Comparison of stacked actuator and bimorph mirrors for scattered laser-beam focusing

Ilya Galaktionov, Vladimir Toporovsky, Julia Sheldakova, Alexis Kudryashov

Proceedings Volume 11818, 118180O (2021) https://doi.org/10.1117/12.2599209

KEYWORDS: Mirrors, Light scattering, Scattering, Deformable mirrors, Laser scattering, Wavefronts, Wavefront sensors, Actuators, Electrodes

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Proceedings Article | 6 June 2021 Paper

Water-cooled deformable mirrors for high power beam correction

Vadim Samarkin, Alexander Alexandrov, Vladimir Toporovsky, Aleksei Rukosuev, Alexis Kudryashov

Proceedings Volume 11849, 1184917 (2021) https://doi.org/10.1117/12.2599116

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Small-aperture stacked-array deformable mirror made of the piezoceramic combs

Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin, Anatoliy Panich, Alexander Sokallo, Anatoliy Malykhin, Alexander Skrylev, Julia Sheldakova

Proceedings Volume 11672, 1167215 (2021) https://doi.org/10.1117/12.2578126

KEYWORDS: Deformable mirrors, Mirrors, Atmospheric optics, Wavefront aberrations, Manufacturing, Adaptive optics, Actuators

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Proceedings Article | 5 March 2021 Presentation + Paper

Focusing laser beam through pinhole using high-resolution stacked-actuator deformable mirror

Alexander Nikitin, Ilya Galaktionov, Julia Sheldakova, Alexis Kudryashov, Vadim Samarkin, Alexey Rukosuev, Vladimir Toporovsky

Proceedings Volume 11672, 116720W (2021) https://doi.org/10.1117/12.2578116

KEYWORDS: Deformable mirrors, Mirrors, Laser energy, Energy efficiency

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Bimorph vs stacked actuator deformable mirror for laser beam focusing through a moderately scattering medium

Ilya Galaktionov, Julia Sheldakova, Vladimir Toporovsky, Vadim Samarkin, Alexis Kudryashov

Proceedings Volume 11672, 1167214 (2021) https://doi.org/10.1117/12.2577604

KEYWORDS: Laser scattering, Scattering, Deformable mirrors, Actuators, Wavefront sensors, Wavefront distortions, Wave propagation, Sensors, Fiber optic gyroscopes

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Proceedings Article | 5 March 2021 Presentation + Paper

240-mm bimorph deformable mirror for wavefront correction at the PEARL facility

Alexis Kudryashov, Alexander Alexandrov, Ilya Galaktionov, Efim Khazanov, Anton Kochetkov, Alexander Kotov, Sergey Perevalov, Vadim Samarkin, Andrey Shaykin, Alexander Soloviev

Proceedings Volume 11672, 116720V (2021) https://doi.org/10.1117/12.2578070

KEYWORDS: Wavefronts, Deformable mirrors, Wavefront sensors, Distortion

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Proceedings Article | 5 March 2021 Presentation + Paper

Wavefront correction of laser beam distorted by fan heater turbulence using an adaptive optical system with a frequency of 2000 Hz

A. Rukosuev, V. Belousov, A. Nikitin, Yu. Sheldakova, A. Kudryashov, V. Bogachev, M. Volkov, S. Garanin, F. Starikov

Proceedings Volume 11678, 116780P (2021) https://doi.org/10.1117/12.2578143

KEYWORDS: Wavefronts, Turbulence, Data modeling, Wavefront distortions, Optical components, Mirrors, Field programmable gate arrays, Control systems

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Proceedings Article | 12 November 2020 Paper

Development and investigation of small-aperture bimorph deformable mirror for correction of low-order aberrations of laser radiation

V. Toporovsky, A. Kudryashov, J. Sheldakova, V. Samarkin

Proceedings Volume 11560, 115601Z (2020) https://doi.org/10.1117/12.2575599

KEYWORDS: Electrodes, Mirrors, Deformable mirrors, Wavefronts, Silver, Manufacturing, Laser engraving, Laser applications, Ultrasonics, Copper

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Proceedings Article | 12 November 2020 Paper

Adaptive optical system for correction of laser beam going through turbulent atmosphere

V. Belousov, I. Galaktionov, A. Kudryashov, A. Nikitin, O. Otrubyannikova, A. Rukosuev, V. Samarkin, I. Sivertceva, Ju. Sheldakova

Proceedings Volume 11560, 1156026 (2020) https://doi.org/10.1117/12.2575650

KEYWORDS: Wavefronts, Adaptive optics, Field programmable gate arrays, Mirrors, Atmospheric optics, Wavefront sensors, Wavefront distortions, Deformable mirrors, Optical calibration, Atmospheric corrections

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Proceedings Article | 12 November 2020 Paper

Comparison of efficiency of bimorph mirror and spatial light modulator for laser beam focusing through a moderately scattering medium

Ilya Galaktionov, Julia Sheldakova, Alexander Nikitin, Alexis Kudryashov

Proceedings Volume 11560, 115602A (2020) https://doi.org/10.1117/12.2575723

KEYWORDS: Mirrors, Scattering, Laser scattering, Light scattering, Distortion, CCD cameras, Spatial light modulators, Deformable mirrors, Electrodes, Wavefront sensors

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Proceedings Article | 14 September 2020 Presentation + Paper

FPGA-based 2 kHz closed-loop adaptive optical system with stacked actuator deformable mirror

J. Sheldakova, A. Rukosuev, V. Belousov, I. Galaktionov, A. Nikitin, V. Samarkin, A. Kudryashov

Proceedings Volume 11508, 115080K (2020) https://doi.org/10.1117/12.2569315

KEYWORDS: Actuators, Deformable mirrors, Earth's atmosphere, Turbulence, Wavefronts, Satellite communications, Satellites, Optical communications, Computing systems, Human-machine interfaces

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Proceedings Article | 14 September 2020 Presentation + Paper

Flat-top beam formation with miniature bimorph deformable mirror

Julia Sheldakova, Vladimir Toporovsky, Ilya Galaktionov, Alexander Nikitin, Alexey Rukosuev, Vadim Samarkin, Alexis Kudryashov

Proceedings Volume 11486, 114860E (2020) https://doi.org/10.1117/12.2569387

KEYWORDS: Deformable mirrors, Electrodes, Mirrors

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Proceedings Article | 20 August 2020 Presentation + Paper

A method for reconstructing the equation of the aspherical surface of mirrors in an explicit form using a device with a wavefront sensor

Alexey Sakharov, Nikolay Baryshnikov, Valery Karasik, Julia Sheldakova, Alexis Kudryashov, Alexander Nikitin

Proceedings Volume 11487, 114870B (2020) https://doi.org/10.1117/12.2569339

KEYWORDS: Wavefronts, Mirrors, Optical spheres, Wavefront sensors, Aspheric lenses, Error analysis, Sensors, Optics manufacturing, Manufacturing

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Proceedings Article | 2 March 2020 Presentation + Paper

Focusing laser beam through pinhole using stacked-actuator deformable mirror

Alexander Nikitin, Ilya Galaktionov, Julia Sheldakova, Alexis Kudryashov, Vadim Samarkin, Alexey Rukosuev, Vladimir Toporovsky

Proceedings Volume 11266, 112661B (2020) https://doi.org/10.1117/12.2548327

KEYWORDS: Deformable mirrors, Mirrors, Electrodes, Photodiodes, Diffraction, Wavefronts, Adaptive optics, Collimators, Zemax, Wavefront sensors

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Proceedings Article | 2 March 2020 Paper

1.5 kHz adaptive optical system for free-space communication tasks

Alexey Rukosuev, Vadim Belousov, Ilya Galaktionov, Alexis Kudryashov, Alexander Nikitin, Vadim Samarkin, Julia Sheldakova

Proceedings Volume 11272, 112721G (2020) https://doi.org/10.1117/12.2548337

KEYWORDS: Field programmable gate arrays, Adaptive optics, Wavefronts, Cameras, Interfaces, Turbulence, Mirrors, Wavefront sensors, Telecommunications, Wavefront distortions

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Proceedings Article | 2 March 2020 Presentation + Paper

Applicability of small size wavefront correctors to compensate for wavefront distortions in laser systems

Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin, Julia Sheldakova, Alexey Rukosuev

Proceedings Volume 11266, 1126619 (2020) https://doi.org/10.1117/12.2548325

KEYWORDS: Mirrors, Electrodes, Deformable mirrors, Wavefronts, Actuators, Laser engraving, Ultrasonics, Zernike polynomials, Manufacturing, Wavefront sensors

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Proceedings Article | 2 March 2020 Paper

Miniature bimorph deformable mirror for laser beam shaping

Julia Sheldakova, Ilya Galaktionov, Alexander Nikitin, Alexey Rukosuev, Vadim Samarkin, Vladimir Toporovsky, Alexis Kudryashov

Proceedings Volume 11266, 112661L (2020) https://doi.org/10.1117/12.2548292

KEYWORDS: Mirrors, Deformable mirrors, Laser engraving, Laser applications, Adaptive optics, Beam shaping, Wavefronts, Manufacturing, Cameras

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Proceedings Article | 9 September 2019 Presentation + Paper

Adaptive optics for laser-beam focusing through the pinhole

Alexis Kudryashov, Alexander Nikitin, Ilya Galaktionov, Julia Sheldakova, Vadim Samarkin, Alexey Rukosuev

Proceedings Volume 11107, 111070F (2019) https://doi.org/10.1117/12.2534008

KEYWORDS: Adaptive optics, Deformable mirrors

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Proceedings Article | 9 September 2019 Presentation + Paper

Bimorph deformable mirrors for high-order aberrations simulation

Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin, Julia Sheldakova, Alexey Rukosuev, Arkadiy Skvortsov, Danila Pshonkin

Proceedings Volume 11107, 111070E (2019) https://doi.org/10.1117/12.2533772

KEYWORDS: Deformable mirrors, Mirrors, Manufacturing, Electrodes, Wavefronts, Actuators, Microelectromechanical systems, Atmospheric modeling, Ultrasonics, Laser engraving

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Proceedings Article | 6 September 2019 Presentation + Paper

Laser beam focusing through the scattering medium using bimorph deformable mirror and spatial light modulator

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Nikitin

Proceedings Volume 11135, 111350B (2019) https://doi.org/10.1117/12.2533985

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Proceedings Article | 6 September 2019 Presentation + Paper

Water-cooled stacked-actuator deformable mirror for atmospheric applications

Vladimir Toporovskiy, Alexis Kudryashov, Vadim Samarkin, Julia Sheldakova, Alexey Rukosuev

Proceedings Volume 11135, 111350A (2019) https://doi.org/10.1117/12.2533984

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Proceedings Article | 21 March 2019 Presentation + Paper

Stacked-actuators deformable mirror vs bimorph mirror for laser beam shaping

Julia Sheldakova, Ilya Galaktionov, Alexander Nikitin, Alexey Rukosuev, Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin

Proceedings Volume 10904, 109041K (2019) https://doi.org/10.1117/12.2509521

KEYWORDS: Mirrors, Deformable mirrors, Electrodes, Actuators, Wavefront sensors, Wavefronts, Sensors, Beam shaping, Genetic algorithms, Adaptive optics

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Proceedings Article | 21 March 2019 Presentation + Paper

Focusing laser beam through pinhole using bimorph deformable mirror

Alexander Nikitin, Ilya Galaktionov, Julia Sheldakova , Alexis Kudryashov, Vadim Samarkin, Alexey Rukosuev

Proceedings Volume 10904, 109041I (2019) https://doi.org/10.1117/12.2510134

KEYWORDS: Deformable mirrors, Mirrors, Electrodes, Photodiodes, Diffraction, Wavefronts, Adaptive optics, Collimators, Zemax, Wavefront sensors

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Proceedings Article | 7 March 2019 Presentation + Paper

Absolute calibration of a Shack-Hartmann wavefront sensor for measurements of wavefronts

Alexander Nikitin, Ilya Galaktionov, Julia Sheldakova, Alexis Kudryashov, Nikolay Baryshnikov, Dmitrii Denisov, Valerii Karasik, Alexey Sakharov

Proceedings Volume 10925, 109250K (2019) https://doi.org/10.1117/12.2510047

KEYWORDS: Wavefronts, Sensors, Calibration, Cameras, Microlens, Wavefront sensors, Spherical lenses, Manufacturing, Light sources, Distance measurement

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Proceedings Article | 4 March 2019 Presentation + Paper

New generation of the miniature bimorph mirrors for compensation of the wavefront distortions

Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin, Julia Sheldakova, Alexey Rukosuev, Arkadiy Skvortsov, Danila Pshonkin

Proceedings Volume 10931, 109310O (2019) https://doi.org/10.1117/12.2510104

KEYWORDS: Electrodes, Mirrors, Deformable mirrors, Laser engraving, Ultrasonics, Wavefronts, Silver, Wavefront sensors, Wavefront distortions, Laser applications

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Proceedings Article | 4 March 2019 Presentation + Paper

Wide aperture high resolution stacked-actuator deformable mirror for high power laser beam correction

Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin, Julia Sheldakova, Alexey Rukosuev

Proceedings Volume 10898, 1089809 (2019) https://doi.org/10.1117/12.2510144

KEYWORDS: Actuators, Mirrors, Deformable mirrors, Glasses, High power lasers, Wavefronts, Atmospheric propagation, Diagnostics, Turbulence, Coating

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Proceedings Article | 20 February 2019 Paper

Laser beam focusing through the dense multiple scattering suspension using bimorph mirror

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Nikitin

Proceedings Volume 10886, 1088619 (2019) https://doi.org/10.1117/12.2509621

KEYWORDS: Mirrors, Sensors, Wavefront sensors, Scattering, Light scattering, Laser scattering, Electrodes, Deformable mirrors, CCD cameras

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Proceedings Article | 18 September 2018 Presentation + Paper

Laser beam focusing through the scattering medium-low order aberration correction approach

Ilia Galaktionov, Alexander Nikitin, Vadim Samarkin, Julia Sheldakova, Alexis Kudryashov

Proceedings Volume 10772, 107720W (2018) https://doi.org/10.1117/12.2324275

KEYWORDS: Distortion, Scattering, Mirrors, Laser scattering, Electrodes, Sensors, Light scattering, Wavefront sensors, Deformable mirrors, CCD cameras

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Proceedings Article | 18 September 2018 Presentation + Paper

Water-cooled stacked-actuator deformable mirror for high CW power laser beam correction

Vladimir Toporovskiy, Alexis Kudryashov, Vadim Samarkin, Julia Sheldakova, Alexey Rukosuev

Proceedings Volume 10772, 107720U (2018) https://doi.org/10.1117/12.2324271

KEYWORDS: Mirrors, Actuators, Deformable mirrors, Wavefronts, Atmospheric propagation, Turbulence, Adaptive optics, Wave propagation, High power lasers

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Proceedings Article | 18 September 2018 Presentation + Paper

Fast adaptive optical system for 1.5 km horizontal beam propagation

Alexis Kudryashov, Alexey Rukosuev, Vadim Samarkin, Ilia Galaktionov, Evgeniy Kopylov

Proceedings Volume 10772, 107720V (2018) https://doi.org/10.1117/12.2324273

KEYWORDS: Field programmable gate arrays, Cameras, Wavefronts, Actuators, Deformable mirrors, Atmospheric propagation, Turbulence, Control systems, Mirrors, Computing systems

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Proceedings Article | 14 September 2018 Presentation + Paper

High-resolution bimorph deformable mirror for laser beam shaping

Vladimir Toporovskiy, Arkadiy Skvortsov, Alexis Kudryashov, Julia Sheldakova, Danila Pshonkin

Proceedings Volume 10744, 107440R (2018) https://doi.org/10.1117/12.2324259

KEYWORDS: Mirrors, Electrodes, Deformable mirrors, Laser engraving, Monochromatic aberrations, Ultrasonics, Silver, Laser applications, Ocean optics, Wavefronts

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Proceedings Article | 14 September 2018 Presentation + Paper

LC phase modulator vs. deformable mirror for laser beam shaping: What is better?

Julia Sheldakova, Ilya Galaktionov, Alexander Nikitin, Alexey Rukosuev, Alexis Kudryashov

Proceedings Volume 10744, 107440S (2018) https://doi.org/10.1117/12.2324260

KEYWORDS: Modulators, Deformable mirrors, Wavefronts, Beam shaping, CCD cameras, Wavefront sensors, Image processing

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Proceedings Article | 24 April 2018 Paper

Adaptive optical system for laser beam formation

Julia Sheldakova, Alexis Kudryashov, Alexey Rukosuev, Alexander Nikitin, Ilya Galaktionov, Vladimir Toporovsky

Proceedings Volume 10712, 107121A (2018) https://doi.org/10.1117/12.2318986

KEYWORDS: Wavefront sensors, Deformable mirrors, Mirrors, Wavefronts, Electrodes, Sensors, Beam shaping, Phase measurement, CCD cameras, CCD image sensors

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Proceedings Article | 22 February 2018 Presentation + Paper

Comparative analysis of methods and optical-electronic equipment to control the form parameters of spherical mirrors

Alexander Nikitin, Nikolay Baryshnikov, Dmitrii Denisov, Valerii Karasik, Alexey Sakharov, Pavel Romanov, Julia Sheldakova, Alexis Kudryashov

Proceedings Volume 10539, 105390Z (2018) https://doi.org/10.1117/12.2297078

KEYWORDS: Spherical lenses, Sensors, Wavefronts, Mirrors, Optical testing, Wavefront sensors, Interferometry, Interferometers, Cameras, Fizeau interferometers

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Proceedings Article | 16 February 2018 Presentation + Paper

Formation of the doughnut and Super-Gaussian intensity distribution by means of different types of wavefront correctors

Julia Sheldakova, Alexis Kudryashov, Ilya Galaktionov, Vadim Samarkin, Alexander Nikitin, Alexey Rukosuev

Proceedings Volume 10518, 105181E (2018) https://doi.org/10.1117/12.2297089

KEYWORDS: Deformable mirrors, Mirrors, Wavefronts, Modulators, Actuators, Wavefront sensors, Monochromatic aberrations, Electrodes, Beam shaping, Zernike polynomials

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Proceedings Article | 16 February 2018 Paper

High spatial resolution bimorph deformable mirror for laser beam control

Vladimir Toporovskiy, Arkadiy Skvortsov, Alexis Kudryashov, Vadim Samarkin, Danila Pshonkin

Proceedings Volume 10518, 1051821 (2018) https://doi.org/10.1117/12.2297598

KEYWORDS: Mirrors, Electrodes, Deformable mirrors, Monochromatic aberrations, Ultrasonics, Actuators, Spatial resolution, Beam controllers, Manufacturing, Solids

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Proceedings Article | 16 February 2018 Presentation + Paper

Comparison of the efficiency of laser beam focusing through the scattering medium using 14- and 31-channel bimorph mirrors

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Nikitin, Vadim Samarkin

Proceedings Volume 10518, 1051818 (2018) https://doi.org/10.1117/12.2297080

KEYWORDS: Distortion, Scattering, Laser scattering, Mirrors, Sensors, Electrodes, Wavefront sensors, Light scattering, Deformable mirrors, CCD cameras

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Proceedings Article | 6 September 2017 Paper

Fast adaptive optical system for the high-power laser beam correction in atmosphere

Alexis Kudryashov, Anna Lylova, Vadim Samarkin, Julia Sheldakova, Alexander Alexandrov

Proceedings Volume 10410, 104100L (2017) https://doi.org/10.1117/12.2276177

KEYWORDS: Deformable mirrors, Wavefront sensors, Mirrors, Actuators, Atmospheric turbulence, Electrodes, Turbulence, Atmospheric corrections, Cameras, Atmospheric propagation

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Proceedings Article | 6 September 2017 Paper

Laser beam focusing through the atmosphere aerosol

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Vadim Samarkin, Alexander Nikitin

Proceedings Volume 10410, 104100M (2017) https://doi.org/10.1117/12.2276180

KEYWORDS: Atmospheric optics, Atmospheric particles, Atmospheric propagation, Aerosols, Laser scattering, Scattering, Adaptive optics, Deformable mirrors, Laser beam propagation

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Proceedings Article | 23 February 2017 Presentation + Paper

Extremely large bimorph deformable mirror for high intense laser beam correction

Alexis Kudryashov, Vadim Samarkin, Alex Aleksandrov, Gilles Borsoni, Takahisa Jitsuno, Pavel Romanov, Julia Sheldakova

Proceedings Volume 10084, 1008408 (2017) https://doi.org/10.1117/12.2257461

KEYWORDS: Mirrors, Deformable mirrors, Wavefront sensors, Sensors, High power lasers, Electrodes, Actuators, Glasses, Coating, Manufacturing, Wavefront distortions

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Proceedings Article | 21 February 2017 Paper

Laser beam focusing through the scattering medium by means of adaptive optics

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Nikitin

Proceedings Volume 10073, 100731L (2017) https://doi.org/10.1117/12.2256447

KEYWORDS: Light scattering, Laser scattering, Scattering, Deformable mirrors, Wavefront sensors, Sensors, Laser beam propagation, Adaptive optics, Beam analyzers, Electrodes, CCD cameras, Mirrors, CCD image sensors, Information operations

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Proceedings Article | 20 February 2017 Presentation + Paper

The use of modified hill-climbing algorithm for laser beam focusing through the turbid medium

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Nikitin

Proceedings Volume 10090, 100901K (2017) https://doi.org/10.1117/12.2257447

KEYWORDS: Mirrors, Laser scattering, Scattering, Wavefront sensors, Sensors, CCD cameras, CCD image sensors, Deformable mirrors, Electrodes, Actuators, Light scattering

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Proceedings Article | 20 February 2017 Presentation + Paper

Beam shaping by means of different wavefront correctors

Julia Sheldakova, Alexis Kudryashov, Anna Lylova, Vadim Samarkin, Alexander Alexandrov

Proceedings Volume 10090, 100901S (2017) https://doi.org/10.1117/12.2257448

KEYWORDS: Beam shaping, Mirrors, Wavefronts, Wavefront sensors, Sensors, Adaptive optics, Deformable mirrors, Beam controllers, Actuators, Monochromatic aberrations, CCD cameras, Electrodes, Zernike polynomials

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Proceedings Article | 4 August 2016 Paper

Adaptive system for solar telescopes operating in the strongly turbulent atmosphere

L. Antoshkin, N. Botugina, L. Bolbasova, M. Demidov, V. Grigoriev, O. Emaleev, P. Konyaev, E. Kopylov, P. Kovadlo, A. Kudryashov, V. Lavrinov, L. Lavrinova, V. Lukin, A. Yu. Shikhovtcev, V. Trifonov

Proceedings Volume 9909, 990932 (2016) https://doi.org/10.1117/12.2231936

KEYWORDS: Turbulence, Solar telescopes, Telescopes, Adaptive optics, Mirrors, Atmospheric optics, Atmospheric optics, Actuators, Sun, Observatories, Disk lasers

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Proceedings Article | 22 July 2016 Paper

Ion-assisted coating for large-scale Bimorph deformable mirror

Takuya Mikami, Takayuki Okamoto, Kunio Yoshida, Takahisa Jitsuno, Shinji Motokoshi, Vadim Samarkin, Alexis Kudryashov, Junji Kawanaka, Noriaki Miyanaga

Proceedings Volume 9983, 99830B (2016) https://doi.org/10.1117/12.2239479

KEYWORDS: Coating, Actuators, Mirrors, Deformable mirrors, Laser systems engineering, Polishing, Laser damage threshold, Laser induced damage, Deformable mirrors, Laser induced damage, Laser damage threshold, Surface finishing, Interferometers

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Proceedings Article | 22 April 2016 Paper

Problems of uniform focal spot formation by means of deformable mirror

Julia Sheldakova, Alexis Kudryashov, Anna Lylova, Vadim Samarkin, Alexey Rukosuev

Proceedings Volume 9727, 97271V (2016) https://doi.org/10.1117/12.2222001

KEYWORDS: Wavefront sensors, Deformable mirrors, Electrodes, Sensors, Mirrors, Zernike polynomials, Wavefronts, CCD cameras, CMOS sensors, Actuators

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Proceedings Article | 22 April 2016 Paper

Largest in the world bimorph deformable mirror for high-power laser beam correction

Alexis Kudryashov, Vadim Samarkin, Alex Aleksandrov, Giles Borsoni, Takahisa Jitsuno, Pavel Romanov, Julia Sheldakova

Proceedings Volume 9727, 97271I (2016) https://doi.org/10.1117/12.2222003

KEYWORDS: Mirrors, Deformable mirrors, Electrodes, Actuators, High power lasers, Wavefront sensors, Glasses, Coating, Wavefront distortions, Wavefronts

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Proceedings Article | 16 March 2016 Paper

A device based on the Shack-Hartmann wave front sensor for testing wide aperture optics

Alexander Nikitin, Julia Sheldakova, Alexis Kudryashov, Gilles Borsoni, Dmitrii Denisov, Valerii Karasik, Alexey Sakharov

Proceedings Volume 9754, 97540K (2016) https://doi.org/10.1117/12.2219282

KEYWORDS: Sensors, Wavefronts, Wavefront sensors, Optical testing, Interferometry, Fizeau interferometers, Mirrors, Microlens, Interferometers, Cameras

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Proceedings Article | 8 October 2015 Paper

Investigation of dual-wavelength laser beam propagation along the in-door atmospheric path

Alina Gorelaya, Elena Shubenkova, Dmitriy Dmitriev, Anna Dmitrieva, Alexis Kudryashov, Igor Lovchiy, Egor Shalymov, Yulia Sheldakova, Arkadii Tsvetkov, Dmitriy Venediktov, Vladimir Venediktov

Proceedings Volume 9641, 96410C (2015) https://doi.org/10.1117/12.2194332

KEYWORDS: Sensors, Atmospheric optics, Atmospheric propagation, Adaptive optics, Wavefront sensors, Wavefront distortions, Wave propagation, Mirrors, Laser beam propagation, Wavefronts

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Proceedings Article | 8 October 2015 Paper

Measurements of parabolic mirrors aberrations in hyperspectral microscope

Anna Lylova, Georgy Kalenkov, Julia Sheldakova, Sergey Kalenkov, Alexis Kudryashov, Alexander Shtanko

Proceedings Volume 9641, 96410N (2015) https://doi.org/10.1117/12.2194901

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Sensors, Zernike polynomials, Microscopes, Cameras, Image restoration, Monochromatic aberrations, Geometrical optics

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Proceedings Article | 8 October 2015 Paper

The real-time atmospheric turbulence modeling and compensation with use of adaptive optics

Anna Lylova, Alexis Kudryashov, Julia Sheldakova, Gilles Borsoni

Proceedings Volume 9641, 96410K (2015) https://doi.org/10.1117/12.2194980

KEYWORDS: Mirrors, Deformable mirrors, Wavefront sensors, Actuators, Adaptive optics, Wavefronts, Electrodes, Atmospheric turbulence, Atmospheric modeling, Atmospheric optics

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Proceedings Article | 4 September 2015 Paper

The real-time atmospheric turbulence modeling and compensation with the use of adaptive optics

Anna Lylova, Alexis Kudryashov, Julia Sheldakova, Gilles Borsoni

Proceedings Volume 9617, 961706 (2015) https://doi.org/10.1117/12.2195735

KEYWORDS: Deformable mirrors, Mirrors, Actuators, Wavefront sensors, Atmospheric turbulence, Wavefronts, Adaptive optics, Electrodes, Atmospheric modeling, Ferroelectric materials

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Proceedings Article | 4 September 2015 Paper

Laser beam propagation and wavefront correction in turbid media

Ilya Galaktionov, Alexis Kudryashov, Julia Sheldakova, Alexander Byalko, Gilles Borsoni

Proceedings Volume 9617, 96170D (2015) https://doi.org/10.1117/12.2195734

KEYWORDS: Light scattering, Wavefronts, Photons, Scattering, Electrodes, Deformable mirrors, Wavefront sensors, Laser beam propagation, Laser scattering, Wavefront aberrations

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Proceedings Article | 2 September 2015 Paper

New approach for laser beam formation by means of deformable mirrors

Julia Sheldakova, Alexis Kudryashov, Anna Lylova, Vadim Samarkin, Alexander Byalko

Proceedings Volume 9581, 95810H (2015) https://doi.org/10.1117/12.2195404

KEYWORDS: Wavefront sensors, Deformable mirrors, Wavefronts, Sensors, Zernike polynomials, CCD cameras, Mirrors, Electrodes, Monochromatic aberrations, CMOS sensors

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Proceedings Article | 6 April 2015 Paper

Hartmannometer versus Fizeau Interferometer: advantages and drawbacks

Alexander Nikitin, Julia Sheldakova, Alexis Kudryashov, Dmitrii Denisov, Valerii Karasik, Alexey Sakharov

Proceedings Volume 9369, 936905 (2015) https://doi.org/10.1117/12.2085263

KEYWORDS: Wavefronts, Fizeau interferometers, Sensors, Wavefront sensors, Photovoltaics, Detector arrays, Calibration, Optical testing, Optical components, Interferometers

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Proceedings Article | 3 April 2015 Paper

Formation of the desired light intensity distribution on the target with bimorph deformable mirror

Julia Sheldakova, Alexis Kudryashov, Ann Lylova

Proceedings Volume 9343, 93430R (2015) https://doi.org/10.1117/12.2084959

KEYWORDS: Deformable mirrors, Wavefront sensors, Wavefronts, Sensors, Electrodes, Mirrors, Zernike polynomials, Cameras, Point spread functions, CMOS sensors

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Proceedings Article | 7 March 2014 Paper

Wide aperture (more than 500 mm) deformable mirrors for high power laser beam correction

Alexis Kudryashov, Vadim Samarkin, Alexander Alexandrov, Julia Sheldakova, Pavel Romanov

Proceedings Volume 8960, 89601G (2014) https://doi.org/10.1117/12.2046497

KEYWORDS: Mirrors, Electrodes, Surface finishing, Deformable mirrors, Actuators, High power lasers, Monochromatic aberrations, Polishing, Ceramics, Carbon dioxide lasers

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Proceedings Article | 12 March 2013 Paper

Extremely high power CO2 laser beam correction

Alexis Kudryashov, Alexander Alexandrov, Alexey Rukosuev, Vadim Samarkin

Proceedings Volume 8600, 860003 (2013) https://doi.org/10.1117/12.2010839

KEYWORDS: Sensors, Wavefront sensors, Infrared cameras, High power lasers, Infrared sensors, Cameras, Carbon dioxide lasers, Wavefronts, Deformable mirrors, Mirrors

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Proceedings Article | 9 February 2012 Paper

New Hartmann wavefront sensor for high power CO2 lasers

Alexis Kudryashov, Alexander Alexandrov, Alexey Rukosuev, Pierre Galarneau

Proceedings Volume 8236, 82360L (2012) https://doi.org/10.1117/12.924118

KEYWORDS: Sensors, Wavefront sensors, Infrared cameras, Infrared sensors, Cameras, High power lasers, Carbon dioxide lasers, Wavefronts, Optical components, Bolometers

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Proceedings Article | 19 February 2011 Paper

Laser beam formation by adaptive optics

J. Sheldakova, V. Samarkin, A. Kudryashov, A. Rukosuev

Proceedings Volume 7913, 79130I (2011) https://doi.org/10.1117/12.880766

KEYWORDS: Electrodes, Mirrors, Wavefronts, Wavefront sensors, Deformable mirrors, Adaptive optics, Phase conjugation, Continuous wave operation, High power lasers, Monochromatic aberrations

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Proceedings Article | 19 February 2011 Paper

Shack-Hartmann wavefront sensor and its problems

Alexis Kudryashov, Valentina Zavalova, Alexey Rukosuev, Alexander Alexandrov, Julia Sheldakova, Vadim Samarkin

Proceedings Volume 7913, 791309 (2011) https://doi.org/10.1117/12.880763

KEYWORDS: Wavefronts, Wavefront sensors, Wavefront aberrations, Sensors, Pulsed laser operation, Laser systems engineering, High power lasers, Monochromatic aberrations, Optical amplifiers, Laser glasses

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Proceedings Article | 30 August 2010 Paper

Multi-dither algorithm on Shack-Hartmann wavefront sensor for laser beam formation

J. Sheldakova, A. Kudryashov, V. Samarkin, A. Rukosuev, A. Alexandrov, P. Romanov

Proceedings Volume 7789, 778912 (2010) https://doi.org/10.1117/12.863966

KEYWORDS: Wavefront sensors, Wavefronts, Electrodes, Mirrors, Phase conjugation, Genetic algorithms, Evolutionary algorithms, Genetics, Sensors, Wavefront aberrations

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Proceedings Article | 30 August 2010 Paper

Deformable mirrors for laser beam shaping

Vadim Samarkin, Alexis Kudryashov

Proceedings Volume 7789, 77890B (2010) https://doi.org/10.1117/12.863965

KEYWORDS: Mirrors, Electrodes, Silicon, Ceramics, Ferroelectric materials, Monochromatic aberrations, Surface finishing, Copper, Optical coatings, Wavefronts

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Proceedings Article | 18 February 2010 Paper

Multi dither adaptive system based on Shack-Hartmann wavefront sensor

J. Sheldakova, A. Kudryashov, V. Samarkin, A. Alexandrov

Proceedings Volume 7579, 75790I (2010) https://doi.org/10.1117/12.847938

KEYWORDS: Wavefront sensors, Wavefronts, Electrodes, Mirrors, Phase conjugation, Genetic algorithms, Evolutionary algorithms, Genetics, Sensors, Wavefront aberrations

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Proceedings Article | 22 April 2009 Paper

Optical components of adaptive systems for improving laser beam quality

Yuri Malakhov, Victor Atuchin, Aleksis Kudryashov, Fedor Starikov

Proceedings Volume 7131, 71311F (2009) https://doi.org/10.1117/12.816273

KEYWORDS: Spiral phase plates, Sensors, Mirrors, Wavefronts, Optical components, Microlens, Algorithm development, Laser development, Reconstruction algorithms, Wavefront sensors

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Proceedings Article | 19 February 2009 Paper

Shack-Hartmann wavefront sensor versus Fizeau interferometer for laser beam measurements

Julia Sheldakova, Alexis Kudryashov, Valentina Zavalova, Pavel Romanov

Proceedings Volume 7194, 71940B (2009) https://doi.org/10.1117/12.822692

KEYWORDS: Wavefront sensors, Phase shifts, Fizeau interferometers, Optical testing, Interferometers, Wavefronts, Laser optics, Sensors, Reconstruction algorithms, CCD cameras

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Proceedings Article | 26 August 2008 Paper

Nonconventional wavefront sensing: point sourced SLODAR, theory and practical examples

Sergey Galetskiy, Tatiana Yu. Cherezova, Alexis Kudryashov

Proceedings Volume 7093, 70930E (2008) https://doi.org/10.1117/12.797970

KEYWORDS: Light sources, Distance measurement, Correlation function, Optical components, Wavefront sensors, Sensors, Algorithms, Turbulence, Wavefronts, Solids

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Proceedings Article | 20 February 2008 Paper

Problem of Shack-Hartmann wavefront sensor and interferometer use while testing strongly distorted laser wavefront

Julia Sheldakova, Alexis Kudryashov, Vadim Samarkin, Valentina Zavalova

Proceedings Volume 6872, 68720B (2008) https://doi.org/10.1117/12.774086

KEYWORDS: Mirrors, Wavefront sensors, Interferometers, Distance measurement, Deformable mirrors, Wavefronts, Electrodes, Sensors, High power lasers, Ferroelectric materials

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Proceedings Article | 20 February 2008 Paper

Femtosecond laser beam improvement: correction of parabolic mirror aberrations by means of adaptive optics

J. Sheldakova, A. Kudryashov, T. Cherezova

Proceedings Volume 6872, 687203 (2008) https://doi.org/10.1117/12.774089

KEYWORDS: Mirrors, Wavefront sensors, Phase conjugation, Electrodes, Monochromatic aberrations, Sensors, Femtosecond phenomena, Adaptive optics, Off axis mirrors, Wavefronts

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Proceedings Article | 12 February 2008 Paper

Adaptive optics in ophthalmology: human eye wavefront generator

Sergey Galetskiy, Tatyana Cherezova, Alexis Kudryashov

Proceedings Volume 6849, 684909 (2008) https://doi.org/10.1117/12.764582

KEYWORDS: Eye, Wavefronts, Eye models, Mirrors, Deformable mirrors, Wavefront sensors, Electrodes, Modulation transfer functions, Adaptive optics, Ophthalmology

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Proceedings Article | 8 February 2008 Paper

Methods of isoplanatic patch widening in human eye retina imaging

Alexander Dubinin, Tatyana Cherezova, Alexis Kudryashov

Proceedings Volume 6844, 684406 (2008) https://doi.org/10.1117/12.764924

KEYWORDS: Eye, Eye models, Cornea, Wavefronts, Retina, Adaptive optics, Refraction, Retinal scanning, Wavefront sensors, Monochromatic aberrations

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Proceedings Article | 1 December 2007 Paper

Wave front sensing of an optical vortex and its correction in the close-loop adaptive system with bimorph mirror

F. Starikov, V. Aksenov, V. Atuchin, I. Izmailov, F. Yu. Kanev, G. Kochemasov, A. Kudryashov, S. Kulikov, Y. Malakhov, A. Manachinsky, N. Maslov, A. Ogorodnikov, I. Soldatenkov, S. Sukharev

Proceedings Volume 6747, 67470P (2007) https://doi.org/10.1117/12.764985

KEYWORDS: Spiral phase plates, Wavefronts, Optical vortices, Mirrors, Deformable mirrors, Sensors, Reconstruction algorithms, Phase measurement, CCD cameras, Wavefront sensors

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Proceedings Article | 26 October 2007 Paper

Adaptive optics in ophthalmology: current techniques and new methods of increasing field-of-view of fundus cameras

Alexander Dubinin, Tatyana Cherezova, Alexis Kudryashov, Fedor Starikov

Proceedings Volume 6796, 679604 (2007) https://doi.org/10.1117/12.778518

KEYWORDS: Eye, Eye models, Wavefronts, Cornea, Cameras, Retina, Adaptive optics, Wavefront sensors, Monochromatic aberrations, Ophthalmology

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Proceedings Article | 26 April 2007 Paper

Intracavity genetic algorithm for any distance beam parameters control

Andrey Kostylev, Alexander Sobolev, Tatiana Cherezova, Yulia Sheldakova, Alexis Kudryashov

Proceedings Volume 6346, 63461X (2007) https://doi.org/10.1117/12.738862

KEYWORDS: Mirrors, Genetic algorithms, Electrodes, Resonators, Beam controllers, Near field, Transmission electron microscopy, Telescopes, Gaussian beams, Beam shaping

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Proceedings Article | 26 April 2007 Paper

Bimorph flexible mirror for vortex beam formation

Alexander Sobolev, Tatyana Cherezova, Vadim Samarkin, Alexey Kudryashov

Proceedings Volume 6346, 63462A (2007) https://doi.org/10.1117/12.738911

KEYWORDS: Mirrors, Electrodes, Algorithm development, Solids, Chemical elements, Wavefronts, Manufacturing, Eye, Atmospheric optics, Phase shift keying

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Proceedings Article | 26 April 2007 Paper

The influence of human eye aberrations on the resolution and field of view of fundus-cameras

Alexander Dubinin, Tatyana Cherezova, Alexey Belyakov, Alexis Kudryashov

Proceedings Volume 6535, 653506 (2007) https://doi.org/10.1117/12.740606

KEYWORDS: Eye, Eye models, Cornea, Image quality, Wavefronts, Retina, Adaptive optics, Liquids, Optical components, Refraction

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Proceedings Article | 26 April 2007 Paper

Adaptive optics and high power pulse lasers

Alexis Kudryashov, Alexander Alexandrov, Valentina Zavalova, Alexey Rukosuev, Vadim Samarkin

Proceedings Volume 6346, 634629 (2007) https://doi.org/10.1117/12.738907

KEYWORDS: Wavefront sensors, Electrodes, Wavefronts, Adaptive optics, Mirrors, Deformable mirrors, High power lasers, Pulsed laser operation, Optical components, Sensors

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Proceedings Article | 14 February 2007 Paper

Novel development of tiny bimorph mirrors

Alexis Kudryashov, Alexander Sobolev, Vadim Samarkin, Tatiana Cherezova

Proceedings Volume 6467, 64670O (2007) https://doi.org/10.1117/12.710631

KEYWORDS: Mirrors, Electrodes, Monochromatic aberrations, Wavefronts, Manufacturing, Computer simulations, Spiral phase plates, Finite element methods, Prisms, Visualization

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Proceedings Article | 14 February 2007 Paper

Far field laser intensity distribution formation by means of intracavity adaptive optics

Inna Ilyina, Tatyana Yu. Cherezova, Alexis Kudryashov

Proceedings Volume 6452, 64520C (2007) https://doi.org/10.1117/12.720042

KEYWORDS: Mirrors, Genetic algorithms, Electrodes, Deformable mirrors, Reconstruction algorithms, Adaptive optics, Beam shaping, Resonators, Fourier transforms, Laser applications

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Proceedings Article | 14 February 2007 Paper

Beam quality measurements with Shack-Hartmann wavefront sensor and M2-sensor: comparison of two methods

J. Sheldakova, A. Kudryashov, V. Zavalova, T. Cherezova

Proceedings Volume 6452, 645207 (2007) https://doi.org/10.1117/12.720045

KEYWORDS: Wavefront sensors, Wavefronts, Sensors, Beam analyzers, Beam quality measurement, Optical testing, Laser beam propagation, Charge-coupled devices, Laser applications, Near field

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Proceedings Article | 8 June 2006 Paper

Custom-oriented wavefront sensor for human eye properties measurements

Sergey Galetskiy, Renat Letfullin, Alex Dubinin, Tatyana Cherezova, Alexey Belyakov, Alexis Kudryashov

Proceedings Volume 6018, 601806 (2006) https://doi.org/10.1117/12.669243

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Proceedings Article | 8 June 2006 Paper

High peak-power laser beam correction and formation

Alexis Kudryashov

Proceedings Volume 6018, 60180E (2006) https://doi.org/10.1117/12.669277

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Proceedings Article | 8 June 2006 Paper

Water-cooled bimorph correctors

Vadim Samarkin, Alexander Aleksandrov, Valeri Dubikovsky, Alexis Kudryashov

Proceedings Volume 6018, 60180Z (2006) https://doi.org/10.1117/12.669365

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Proceedings Article | 7 March 2006 Paper

Human eye anisoplanatism: eye as a lamellar structure

Alexander Dubinin, Tatyana Cherezova, Alexey Belyakov, Alexis Kudryashov

Proceedings Volume 6138, 613813 (2006) https://doi.org/10.1117/12.650103

KEYWORDS: Eye, Eye models, Wavefronts, Retina, Adaptive optics, Monochromatic aberrations, Image resolution, Cameras, Wavefront sensors, Cornea

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Proceedings Article | 28 February 2006 Paper

Adaptive systems for single pulse lasers

Alexis Kudryashov, Alexander Alexandrov, Vadim Samarkin

Proceedings Volume 6101, 610107 (2006) https://doi.org/10.1117/12.674314

KEYWORDS: Wavefront sensors, Electrodes, Wavefronts, Mirrors, Deformable mirrors, Adaptive optics, Pulsed laser operation, Sensors, Optical components, Beam controllers

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Proceedings Article | 22 February 2006 Paper

Correction of the radiation of 1 kW CW diode-pumped glass laser

J. Sheldakova, V. Samarkin, Alexis Kudryashov

Proceedings Volume 6101, 61010B (2006) https://doi.org/10.1117/12.674316

KEYWORDS: Mirrors, Electrodes, Wavefront sensors, Continuous wave operation, Wavefronts, Deformable mirrors, Sensors, Genetic algorithms, Glasses, Semiconductor lasers

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Proceedings Article | 3 February 2006 Paper

Genetic and hill-climbing algorithms for high-power laser beam correction

J. Sheldakova, T. Cherezova, A. Kudryashov

Proceedings Volume 5975, 59750S (2006) https://doi.org/10.1117/12.675573

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Proceedings Article | 23 January 2006 Paper

Tiny bimorph mirrors for laser beam control

Alexis Kudryashov, Alexander Sobolev, Vadim Samarkin, Tatyana Cherezova

Proceedings Volume 6113, 61130D (2006) https://doi.org/10.1117/12.658201

KEYWORDS: Mirrors, Electrodes, Monochromatic aberrations, Beam controllers, Computer simulations, Manufacturing, Finite element methods, Prisms, Glasses, MATLAB

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Proceedings Article | 1 September 2005 Paper

Human retina imaging: anisoplanatism considerations

Alexander Dubinin, Tatyana Cherezova, Alexey Belyakov, Alexis Kudryashov

Proceedings Volume 5864, 58640G (2005) https://doi.org/10.1117/12.632922

KEYWORDS: Eye, Retina, Wavefronts, Image quality, Eye models, Cornea, Crystals, Visualization, Retinal scanning, Image enhancement

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Proceedings Article | 1 September 2005 Paper

A human eye model based on bimorph flexible mirror

Renat Letfullin, Tatyana Cherezova, Alexey Belyakov, Alexis Kudryashov

Proceedings Volume 5864, 58640F (2005) https://doi.org/10.1117/12.632921

KEYWORDS: Eye, Eye models, Mirrors, Calibration, Wavefronts, Electrodes, Monochromatic aberrations, Zemax, Ray tracing, Wavefront sensors

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Proceedings Article | 30 August 2005 Paper

Human eye model based on bimorph flexible mirror

Renat Letfullin, Tatyana Cherezova, Aleksey Belyakov, Alexis Kudryashov

Proceedings Volume 5894, 58940A (2005) https://doi.org/10.1117/12.619440

KEYWORDS: Eye, Eye models, Mirrors, Wavefronts, Electrodes, Calibration, Monochromatic aberrations, Wavefront sensors, Deformable mirrors, Instrument modeling

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Proceedings Article | 23 August 2005 Paper

Anisoplanatism in human retina imaging

Alexander Dubinin, Tatyana Cherezova, Alexey Belyakov, Alexis Kudryashov

Proceedings Volume 5894, 589409 (2005) https://doi.org/10.1117/12.619429

KEYWORDS: Eye, Retina, Wavefronts, Eye models, Cornea, Crystals, Visualization, Image quality, Retinal scanning, Wavefront sensors

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Proceedings Article | 19 August 2005 Paper

Optimized bimorph flexible mirrors for laser beam correction and shaping

A. Sobolev, T. Cherezova, A. Kudryashov

Proceedings Volume 5876, 58760F (2005) https://doi.org/10.1117/12.626228

KEYWORDS: Electrodes, Mirrors, Algorithm development, Eye, Solids, Finite element methods, Wavefronts, Inverse problems, Chemical elements, Prisms

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Proceedings Article | 18 August 2005 Paper

Genetic algorithm for intracavity laser beam shaping

Andrey Kostylev, Alexander Sobolev, Tatyana Cherezova, Alexis Kudryashov

Proceedings Volume 5876, 587605 (2005) https://doi.org/10.1117/12.626197

KEYWORDS: Mirrors, Genetic algorithms, Electrodes, Resonators, Near field, Californium, Gaussian beams, Transmission electron microscopy, Active optics, Beam controllers

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Proceedings Article | 12 April 2005 Paper

The use of M2 meter to correct for high-power laser aberrations

Julia Sheldakova, Tatyana Cherezova, Alexander Aleksandrov, Alexey Rukosuev, Alexis Kudryashov

Proceedings Volume 5708, (2005) https://doi.org/10.1117/12.609581

KEYWORDS: Mirrors, Electrodes, Wavefront sensors, Control systems, Genetic algorithms, Wavefronts, High power lasers, Diffraction, Sensors, Charge-coupled devices

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Proceedings Article | 11 November 2004 Paper

Double-pass measurement of human eye aberrations: limitations and practical realization

Renat Letfullin, Alexey Belyakov, Tatyana Cherezova, Alexis Kudryashov

Proceedings Volume 5572, (2004) https://doi.org/10.1117/12.568282

KEYWORDS: Eye, Monochromatic aberrations, Eye models, Mirrors, Scattering, Cones, Wavefronts, Wavefront sensors, Retina, Deformable mirrors

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Proceedings Article | 11 November 2004 Paper

Anisoplanatism in adaptive optics compensation of human eye aberrations

Alex Dubinin, Alexey Belyakov, Tatyana Cherezova, Alexis Kudryashov

Proceedings Volume 5572, (2004) https://doi.org/10.1117/12.568272

KEYWORDS: Eye, Adaptive optics, Monochromatic aberrations, Retina, Wavefronts, Visualization, Error analysis, Astronomy, Computer simulations, Zernike polynomials

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Proceedings Article | 1 June 2004 Paper

Genetic and hill-climbing algorithms for laser beam correction

Julia Sheldakova, Alexey Rukosuev, Alexis Kudryashov

Proceedings Volume 5333, (2004) https://doi.org/10.1117/12.538446

KEYWORDS: Electrodes, Mirrors, Genetic algorithms, Wavefront sensors, Wavefronts, Genetics, Charge-coupled devices, Adaptive optics, Deformable mirrors, Control systems

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Proceedings Article | 1 June 2004 Paper

High-power lasers and adaptive optics

Alexis Kudryashov, Vadim Samarkin, Alexey Rukosuev, Alexander Alexandrov

Proceedings Volume 5333, (2004) https://doi.org/10.1117/12.538450

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Adaptive optics, Electrodes, High power lasers, Deformable mirrors, Monochromatic aberrations, Charge-coupled devices, Laser systems engineering

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Proceedings Article | 10 November 2003 Paper

Adaptive system for high power lasers

Alexander Aleksandrov, A. Rukosuev, V. Zavalova, P. Romanov, V. Samarkin, A. Kudryashov

Proceedings Volume 5120, (2003) https://doi.org/10.1117/12.515426

KEYWORDS: Electrodes, Mirrors, Wavefronts, Wavefront sensors, High power lasers, Wavefront distortions, Control systems, Beam splitters, Deformable mirrors, CCD cameras

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Proceedings Article | 6 October 2003 Paper

Wavefront correction for near diffraction-limited focal spot on a 6x100 J/1-ns laser facility

Julien Fuchs, Benoit Wattellier, Ji Zou, Jean-Christophe Chanteloup, H. Bandulet, P. Michel, C. Labaune, S. Depierreux, Alexis Kudryashov, Alexander Aleksandrov

Proceedings Volume 5137, (2003) https://doi.org/10.1117/12.517964

KEYWORDS: Wavefronts, Mirrors, Adaptive optics, Deformable mirrors, Electrodes, Dielectrics, Wavefront distortions, Diffraction, Glasses, Wavefront sensors

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Proceedings Article | 25 June 2003 Paper

Multidither adaptive optical system for laser beam shaping

J. Sheldakova, Alexey Rukosuev, Alexander Alexandrov, Alexis Kudryashov

Proceedings Volume 4969, (2003) https://doi.org/10.1117/12.499280

KEYWORDS: Mirrors, Electrodes, Sensors, Wavefronts, Control systems, Adaptive optics, Deformable mirrors, Beam controllers, CCD image sensors, Wavefront sensors

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Proceedings Article | 25 June 2003 Paper

Correction of the aberrations of high-power lasers

Alexis Kudryashov, Vadim Samarkin, Alexey Rukosuev, Alexander Alexandrov

Proceedings Volume 4969, (2003) https://doi.org/10.1117/12.483647

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Electrodes, Charge-coupled devices, Adaptive optics, Beam controllers, Control systems, Sensors, Monochromatic aberrations

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Proceedings Article | 7 February 2003 Paper

Semipassive bimorph correctors for multipurpose applications

Vadim Samarkin, Alexander Aleksandrov, Alexis Kudryashov

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.458928

KEYWORDS: Mirrors, Electrodes, Wavefronts, Silicon, Ceramics, Ferroelectric materials, Copper, Monochromatic aberrations, Surface finishing, High power lasers

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Proceedings Article | 24 October 2002 Paper

Adaptive system for laser beam formation

Alexander Alexandrov, Alexey Rukosuev, Valentina Zavalova, Pavel Romanov, Vadim Samarkin, Alexis Kudryashov

Proceedings Volume 4770, (2002) https://doi.org/10.1117/12.459102

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Electrodes, Charge-coupled devices, Adaptive optics, Control systems, Sensors, Beam controllers, Monochromatic aberrations

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Proceedings Article | 24 October 2002 Paper

Intracavity laser beam shaping by means of a flexible corrector

Tatyana Cherezova, Vadim Samarkin, Sergei Chesnokov, Alexis Kudryashov

Proceedings Volume 4770, (2002) https://doi.org/10.1117/12.459508

KEYWORDS: Mirrors, Laser resonators, Resonators, Output couplers, Deformable mirrors, Disk lasers, Wavefronts, Glasses, Beam shaping, Laser therapeutics

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Proceedings Article | 29 July 2002 Paper

Analysis of the laser intensity distribution

Yu. Sheldakova, Tatyana Cherezova, Alexis Kudryashov

Proceedings Volume 4900, (2002) https://doi.org/10.1117/12.484582

KEYWORDS: Optical testing, CCD cameras, Near field, Charge-coupled devices, Helium neon lasers, Laser beam propagation, Laser applications, Standards development, Mirrors, Near field optics

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Proceedings Article | 29 July 2002 Paper

Shack-Hartmann wavefront sensor for beam quality measurements

Alexis Kudryashov, Vladislav Panchenko, Valentina Zavalova

Proceedings Volume 4900, (2002) https://doi.org/10.1117/12.484575

KEYWORDS: Wavefront sensors, Wavefronts, Sensors, Monochromatic aberrations, Beam quality measurement, Optical testing, Phase measurement, CCD cameras, Mirrors, Zernike polynomials

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Proceedings Article | 6 June 2002 Paper

Intracavity beam shaping of a Nd:YAG laser

Michael Gerber, Alexis Kudryashov, Thomas Graf

Proceedings Volume 4629, (2002) https://doi.org/10.1117/12.469479

KEYWORDS: Mirrors, Beam shaping, Nd:YAG lasers, Resonators, Electrodes, Spherical lenses, Solids, Continuous wave operation, Actuators, Manufacturing

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Proceedings Article | 6 June 2002 Paper

Low-cost laser-beam analyzer

Tatyana Cherezova, Yu. Sheldakova, Alexis Kudryashov

Proceedings Volume 4629, (2002) https://doi.org/10.1117/12.469498

KEYWORDS: CCD cameras, Optical testing, Near field, Laser beam propagation, Transmission electron microscopy, Signal to noise ratio, Laser applications, Laser development, Standards development, Laser resonators

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Proceedings Article | 6 June 2002 Paper

Adaptive optics in a multistage TiS laser

H. Baumhacker, Georg Pretzler, Klaus-Juergen Witte, Manuel Hegelich, Marcin Kaluza, S. Karsch, Alexis Kudryashov, Vadim Samarkin, A. Rukosuev

Proceedings Volume 4629, (2002) https://doi.org/10.1117/12.469494

KEYWORDS: Wavefronts, Deformable mirrors, Crystals, Electrodes, Wavefront distortions, Adaptive optics, Mirrors, Modulation, Optical amplifiers, Wavefront sensors

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Proceedings Article | 30 April 2002 Paper

M2 sensor for the adaptive optical system

Yu. Sheldakova, Tatyana Cherezova, Alexis Kudryashov

Proceedings Volume 4644, (2002) https://doi.org/10.1117/12.464171

KEYWORDS: Sensors, Optical testing, Charge-coupled devices, Control systems, Standards development, Oscilloscopes, Beam controllers, Laser optics, Mirrors, CCD cameras

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Proceedings Article | 1 April 2002 Paper

Computer simulation of the wavefront correction system with local curvature sensing

Vladimir Militsin, Svyatoslav Shlenov, Alexis Kudryashov

Proceedings Volume 4750, (2002) https://doi.org/10.1117/12.464497

KEYWORDS: Sensors, Wavefronts, Monochromatic aberrations, Mirrors, Electrodes, Signal detection, Computer simulations, Wavefront sensors, Wavefront aberrations, Wavefront distortions

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Proceedings Article | 1 February 2002 Paper

Low-cost M2-sensor for the adaptive optical system

J. Sheldakova, Tatyana Cherezova, Alexis Kudryashov

Proceedings Volume 4493, (2002) https://doi.org/10.1117/12.454724

KEYWORDS: Sensors, Optical testing, Control systems, Mirrors, CCD cameras, Charge-coupled devices, Oscilloscopes, Adaptive optics, Medicine, Beam controllers

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Proceedings Article | 1 February 2002 Paper

Shack-Hartmann wavefront sensor for laser beam analyses

Valentina Zavalova, Alexis Kudryashov

Proceedings Volume 4493, (2002) https://doi.org/10.1117/12.454723

KEYWORDS: Sensors, Wavefronts, Wavefront sensors, Monochromatic aberrations, Mirrors, Beam analyzers, Adaptive optics, Distortion, CCD cameras, Helium neon lasers

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Proceedings Article | 1 February 2002 Paper

Bimorph mirrors for powerful laser beam correction and formation

Vadim Samarkin, Alexander Alexandrov, Alexis Kudryashov

Proceedings Volume 4493, (2002) https://doi.org/10.1117/12.454722

KEYWORDS: Mirrors, Electrodes, Silicon, Ceramics, Monochromatic aberrations, Ferroelectric materials, Wavefronts, Surface finishing, Copper, Polishing

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Proceedings Article | 1 February 2002 Paper

Adaptive optical system based on bimorph mirror and Shack-Hartmann wavefront sensor

Alexey Rukosuev, Alexander Alexandrov, Valentina Zavalova, Vadim Samarkin, Alexis Kudryashov

Proceedings Volume 4493, (2002) https://doi.org/10.1117/12.454721

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Electrodes, Charge-coupled devices, Adaptive optics, Control systems, Sensors, Beam controllers, Monochromatic aberrations

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Proceedings Article | 8 November 2001 Paper

Adaptive optical elements for laser beam control

Alexis Kudryashov, Vadim Samarkin, Alexander Aleksandrov

Proceedings Volume 4457, (2001) https://doi.org/10.1117/12.447751

KEYWORDS: Mirrors, Electrodes, Silicon, Ceramics, Ferroelectric materials, Monochromatic aberrations, Surface finishing, Wavefronts, Optical components, Optical coatings

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Proceedings Article | 23 May 2001 Paper

Deconvolution of color retinal images with wavefront sensing

Andrey Larichev, Nikita Irochnikov, Pavel Ivanov, Alexis Kudryashov

Proceedings Volume 4251, (2001) https://doi.org/10.1117/12.427879

KEYWORDS: Eye, Mirrors, Retina, Cameras, Wavefront sensors, Deconvolution, Wavefronts, Imaging systems, Electrodes, Optical transfer functions

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Proceedings Article | 24 April 2001 Paper

Closed-loop adaptive system for laser beam control

Alexis Kudryashov, Alexey Rukosuev, Alexander Alexandrov, Valentina Zavalova, Vadim Samarkin

Proceedings Volume 4270, (2001) https://doi.org/10.1117/12.424676

KEYWORDS: Mirrors, Wavefronts, Electrodes, Control systems, Wavefront sensors, Beam controllers, Charge-coupled devices, Sensors, Adaptive optics, Monochromatic aberrations

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Proceedings Article | 25 January 2001 Paper

Laser resonator with active mirror-generation of Q-switch regime in industrial CO2 laser

Alexis Kudryashov, Vadim Samarkin, Alexandre Zabelin

Proceedings Volume 4184, (2001) https://doi.org/10.1117/12.414070

KEYWORDS: Mirrors, Resonators, Laser resonators, Electrodes, Q switching, Carbon dioxide lasers, Q switched lasers, Modulation, Copper, Disk lasers

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Proceedings Article | 25 January 2001 Paper

Highly efficient lasers using polycrystalline Nd:YAG ceramics

Jianren Lu, Mahendra Prabhu, Ken-ichi Ueda, Hideki Yagi, T. Yanagitani, Alexis Kudryashov

Proceedings Volume 4184, (2001) https://doi.org/10.1117/12.414093

KEYWORDS: Ceramics, Nd:YAG lasers, Crystals, Laser crystals, Virtual point source, High power lasers, Mirrors, Optical pumping, Absorption, Laser damage threshold

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Proceedings Article | 3 November 2000 Paper

Depth-sensitive adaptive deconvolution of retinal images

Andrey Larichev, Nikita Irochnikov, Ilia Nikolaev, K. Nesterouk, Alexis Kudryashov

Proceedings Volume 4162, (2000) https://doi.org/10.1117/12.405936

KEYWORDS: Deconvolution, Retina, Cameras, Eye, Electrodes, Mirrors, Monochromatic aberrations, Wavefront sensors, Wavefronts, Imaging systems

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Proceedings Article | 12 May 2000 Paper

Quasi Q-switch regime of CO2 laser generation

Alexis Kudryashov, Vadim Samarkin, Alexandre Zabelin

Proceedings Volume 3930, (2000) https://doi.org/10.1117/12.385409

KEYWORDS: Mirrors, Resonators, Carbon dioxide lasers, Laser resonators, Electrodes, Q switching, Q switched lasers, Modulation, Disk lasers, Copper

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SPIE Press Book | 3 November 1999

Laser Resonators: Novel Design and Development

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Proceedings Article | 3 November 1999 Paper

Formation of the specified laser output by means of intracavity active mirrors

Tatyana Cherezova, Sergei Chesnokov, Leonid Kaptsov, Alexis Kudryashov, Vadim Samarkin

Proceedings Volume 3760, (1999) https://doi.org/10.1117/12.367578

KEYWORDS: Mirrors, Electrodes, Resonators, Disk lasers, Carbon dioxide lasers, Laser resonators, Output couplers, Transmission electron microscopy, Electroluminescence, Diffraction

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Proceedings Article | 24 May 1999 Paper

Intracavity laser beam control

Alexis Kudryashov

Proceedings Volume 3611, (1999) https://doi.org/10.1117/12.349258

KEYWORDS: Mirrors, Electrodes, Beam controllers, Laser applications, Excimer lasers, Resonators, Monochromatic aberrations, Carbon dioxide lasers, Control systems, Laser resonators

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Proceedings Article | 24 May 1999 Paper

Given laser output formation: adaptive optics approach--theory and experiment

Tatyana Cherezova, Vadim Samarkin, Sergei Chesnokov, Leonid Kaptsov, Alexis Kudryashov

Proceedings Volume 3611, (1999) https://doi.org/10.1117/12.349270

KEYWORDS: Mirrors, Resonators, Laser resonators, Electrodes, Solids, Output couplers, Deformable mirrors, Carbon dioxide lasers, Continuous wave operation, Diffraction

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Proceedings Article | 20 January 1999 Paper

Low-cost adaptive optical devices for multipurpose applications

Alexis Kudryashov, V. Kulakov, Ye. Kotsuba, L. Novikova, Vladislav Panchenko, Vadim Samarkin

Proceedings Volume 3688, (1999) https://doi.org/10.1117/12.337555

KEYWORDS: Mirrors, Electrodes, Glasses, Control systems, Wavefronts, Laser applications, Manufacturing, Connectors, Liquids, Optical components

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Proceedings Article | 13 May 1998 Paper

Numerical simulation of the intracavity laser-beam formation by means of adaptive optics

Tatyana Cherezova, Sergei Chesnokov, Leonid Kaptsov, Alexis Kudryashov

Proceedings Volume 3267, (1998) https://doi.org/10.1117/12.308127

KEYWORDS: Mirrors, Electrodes, Diffraction, Disk lasers, Resonators, Actuators, Gaussian beams, Numerical simulations, Adaptive optics, Laser resonators

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Proceedings Article | 13 May 1998 Paper

Intracavity laser-beam control and formation

Alexis Kudryashov

Proceedings Volume 3267, (1998) https://doi.org/10.1117/12.308124

KEYWORDS: Mirrors, Resonators, Electrodes, Laser resonators, Disk lasers, Spherical lenses, Beam controllers, YAG lasers, Solid state lasers, Continuous wave operation

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SPIE Journal Paper | 1 November 1996

Semipassive bimorph flexible mirrors for atmospheric adaptive optics applications

Alexis Kudryashov, Victor Shmalhausen

OE, Vol. 35, Issue 11, (November 1996) https://doi.org/10.1117/12.10.1117/1.601044

KEYWORDS: Mirrors, Electrodes, Zernike polynomials, Monochromatic aberrations, Optical engineering, Atmospheric optics, Adaptive optics, Actuators, Ceramics, Glasses

Proceedings Article | 1 March 1996 Paper

Thin-plates test with modified IT-200 Fizeau interferometer

Alexis Kudryashov, Vadim Samarkin, A. Lukashev, O. Yunyakov

Proceedings Volume 2713, (1996) https://doi.org/10.1117/12.234240

KEYWORDS: Interferometers, Fringe analysis, Fizeau interferometers, Quartz, Ferroelectric materials, CCD cameras, Manufacturing, Beam splitters, Prisms, Objectives

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Proceedings Article | 12 December 1994 Paper

Diagnostic controlled interferometer with laser diode

Alexis Kudryashov, Aleksei Seliverstov

Proceedings Volume 2340, (1994) https://doi.org/10.1117/12.195916

KEYWORDS: Interferometers, Fringe analysis, Sensors, Semiconductor lasers, Phase shifts, Interference (communication), Reconstruction algorithms, Diagnostics, Image processing, Signal detection

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Proceedings Article | 16 August 1994 Paper

Stable resonator with the controlled flexible mirror

Alexis Kudryashov, Tatyana Cherezova

Proceedings Volume 2206, (1994) https://doi.org/10.1117/12.184623

KEYWORDS: Mirrors, Resonators, Optical components, Laser resonators, Diffraction, Adaptive optics, Spherical lenses, Laser optics, Solid state lasers, Deformable mirrors

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Proceedings Article | 16 August 1994 Paper

Adaptive optical system for control of the CW technological YAG;Nd3+ laser beam parameters

Alexis Kudryashov, Tatyana Cherezova, Leonid Kaptsov

Proceedings Volume 2206, (1994) https://doi.org/10.1117/12.184625

KEYWORDS: Mirrors, Solid state lasers, Continuous wave operation, Laser applications, Electrodes, Control systems, Resonators, Laser resonators, Crystals, Laser crystals

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Proceedings Article | 1 April 1994 Paper

Application of intracavity adaptive mirror for CW solid state laser radiation control

Tatyana Cherezova, Leonid Kaptsov, Alexis Kudryashov

Proceedings Volume 2257, (1994) https://doi.org/10.1117/12.171660

KEYWORDS: Mirrors, Solid state lasers, Continuous wave operation, Electrodes, Resonators, Beam controllers, Laser resonators, Laser applications, Crystals, Laser crystals

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Proceedings Article | 21 January 1994 Paper

Adaptive stabilized interferometer with laser diode

Alexis Kudryashov, Aleksei Seliverstov

Proceedings Volume 2051, (1994) https://doi.org/10.1117/12.165931

KEYWORDS: Interferometers, Fringe analysis, Sensors, Semiconductor lasers, Interference (communication), Phase shifts, Reconstruction algorithms, Signal detection, Sodium, Digital filtering

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Proceedings Article | 26 July 1993 Paper

Control and formation of the output radiation of the technological lasers by methods of adaptive optics

Alexis Kudryashov

Proceedings Volume 1983, 19830G (1993) https://doi.org/10.1117/12.2308435

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The results of the use of adaptive bimorph mirror for control of CO2, YAG, excimer and copper-vapor lasers beam parameters are presented in this work. The possibility to reduce divergence and form various combinations of mode structures of laser beam are shown. The development of methods and elements of adaptive optics permits to use industrial lasers in different new spheres of technology and to improve laser beam parameters. Main tasks that should be solved by laser adaptive system are the following: 1. Stabilization and optimization of different radiation parameters; 2. Formation of given intensity distribution of laser beam. Different methods are used to get the desired result. Firest of all complex optical systems with rather expensive optical elements. Another way is to use kinoform flat optics. The new method of laser beam formation and stabilization is application of adaptive optical systems both extracavity and intracavity. Parameters of laser beam depend on different intracavity distortions. In the most cases these distortions act as a pure phase one: Fluctuations of refractive index of active medium, thermal mirror deformations etc. This may distore spatial distribution of the radiation intensity and increase the beam divergence. The use of intracavity adaptive optical elements can reduce such undesirable effects, influence on geometry of the generated modes and suppress the output power fluctuations. Every adaptive system consists of three main elements: corrector of the wave front (deformable mirror) , sensor and electronic control system. In our expriments a circular semipassive flexible bimorph mirror with 17 control electrodes was used as a corrector. It was made of round copper plate (40 mm diameter, 2 mm of thickness) and piezoelectric ceramic disk (0.3 mm of thickness) glued to copper plate. A number of channels were made in copper plate in order to cool the mirror by water. The reflective dielectric covering was layed on external surface of the plate. The mirror was fixed in a holder by rubber rings. Under applied voltage of +300 V to every electrode the corrector surface becames of a spherical shape (radius of curvature 7000 mm) . The maximum displacement in the centre of mirror was 6 micrones.

Proceedings Article | 23 July 1993 Paper

Controlled diagnostic interferometer with laser diode

Alexis Kudryashov

Proceedings Volume 1983, 19838K (1993) https://doi.org/10.1117/12.2308727

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Showing 5 of 171 publications

Proceedings Volume Editor (27)

SPIE Conference Volume | 27 March 2024

Laser Resonators, Microresonators, and Beam Control XXVI

SPIE Conference Volume | 18 April 2023

Laser Resonators, Microresonators, and Beam Control XXV

SPIE Conference Volume | 2 April 2022

Laser Resonators, Microresonators, and Beam Control XXIV

SPIE Conference Volume | 28 April 2021

Laser Resonators, Microresonators, and Beam Control XXIII

SPIE Conference Volume | 10 April 2020

Laser Resonators, Microresonators, and Beam Control XXII

Showing 5 of 27 publications

Conference Committee Involvement (60)

Laser Beam Shaping XXIV

3 August 2025 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XXVII

28 January 2025 | San Francisco, California, United States

Laser Resonators, Microresonators, and Beam Control XXVI

30 January 2024 | San Francisco, California, United States

Laser Beam Shaping XXIII

21 August 2023 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XXV

31 January 2023 | San Francisco, California, United States

Laser Beam Shaping XXII

23 August 2022 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XXIV

24 January 2022 | San Francisco, California, United States

Laser Beam Shaping XXI

1 August 2021 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XXIII

6 March 2021 | Online Only, California, United States

Laser Beam Shaping XX

24 August 2020 | Online Only, California, United States

Laser Resonators, Microresonators, and Beam Control XXII

3 February 2020 | San Francisco, California, United States

Laser Beam Shaping XIX

11 August 2019 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XXI

4 February 2019 | San Francisco, California, United States

Laser Beam Shaping XVIII

20 August 2018 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XX

29 January 2018 | San Francisco, California, United States

Laser Resonators, Microresonators, and Beam Control XIX

30 January 2017 | San Francisco, California, United States

Laser Beam Shaping XVII

29 August 2016 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XVIII

15 February 2016 | San Francisco, California, United States

Laser Beam Shaping XVI

10 August 2015 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XVII

9 February 2015 | San Francisco, California, United States

Laser Beam Shaping XV

17 August 2014 | San Diego, California, United States

Laser Resonators, Microresonators, and Beam Control XVI

3 February 2014 | San Francisco, California, United States

MEMS Adaptive Optics VIII

2 February 2014 | San Francisco, California, United States

Laser Beam Shaping XIV

26 August 2013 | San Diego, California, United States

MEMS Adaptive Optics VII

5 February 2013 | San Francisco, California, United States

Laser Resonators, Microresonators, and Beam Control XV

3 February 2013 | San Francisco, California, United States

Laser Beam Shaping XIII

13 August 2012 | San Diego, California, United States

MEMS Adaptive Optics VI

25 January 2012 | San Francisco, California, United States

Laser Resonators, Microresonators, and Beam Control XIV

22 January 2012 | San Francisco, California, United States

Laser Beam Shaping XII

21 August 2011 | San Diego, California, United States

MEMS Adaptive Optics V

27 January 2011 | San Francisco, California, United States

Laser Resonators and Beam Control XIII

23 January 2011 | San Francisco, California, United States

Advanced Wavefront Control: Methods, Devices, and Applications VIII

5 August 2010 | San Diego, California, United States

Laser Beam Shaping XI

2 August 2010 | San Diego, California, United States

MEMS Adaptive Optics IV

27 January 2010 | San Francisco, California, United States

Laser Resonators and Beam Control XII

24 January 2010 | San Francisco, California, United States

Advanced Wavefront Control: Methods, Devices, and Applications VII

6 August 2009 | San Diego, California, United States

Laser Beam Shaping X

3 August 2009 | San Diego, California, United States

MEMS Adaptive Optics III

27 January 2009 | San Jose, California, United States

Laser Resonators and Beam Control XI

26 January 2009 | San Jose, California, United States

Advanced Wavefront Control: Methods, Devices, and Applications VI

14 August 2008 | San Diego, California, United States

Laser Beam Shaping IX

11 August 2008 | San Diego, California, United States

MEMS Adaptive Optics II

22 January 2008 | San Jose, California, United States

Laser Resonators and Beam Control X

21 January 2008 | San Jose, California, United States

Laser Beam Shaping VIII

28 August 2007 | San Diego, California, United States

MEMS Adaptive Optics

24 January 2007 | San Jose, California, United States

Laser Resonators and Beam Control IX

22 January 2007 | San Jose, California, United States

Laser Beam Shaping VII

13 August 2006 | San Diego, California, United States

Laser Resonators and Beam Control IX

25 January 2006 | San Jose, California, United States

Laser Beam Shaping VI

1 August 2005 | San Diego, California, United States

Laser Resonators and Beam Control VIII

25 January 2005 | San Jose, California, United States

Laser Beam Shaping V

5 August 2004 | Denver, Colorado, United States

Laser Resonators and Beam Control VII

28 January 2004 | San Jose, Ca, United States

Laser Beam Shaping IV

6 August 2003 | San Diego, California, United States

Laser Resonators and Beam Control VI

29 January 2003 | San Jose, CA, United States

Laser Resonators and Beam Control V

22 January 2002 | San Jose, California, United States

Laser Resonators IV

23 January 2001 | San Jose, CA, United States

Laser Resonators III

26 January 2000 | San Jose, CA, United States

Laser Resonators II

27 January 1999 | San Jose, CA, United States

Laser Resonators

26 January 1998 | San Jose, CA, United States

Showing 5 of 60 Conference Committees

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