Prof. Sergey M. Kobtsev Profile

Prof. Sergey M. Kobtsev

Head of Div of Laser Physics of NSU

SPIE Involvement:

Author

Publications (81)

Proceedings Article | 27 November 2024 Poster + Paper

Designing free-form optics for high-quality Gaussian beam tailoring from diode lasers for Ti:Sa laser pumping

D. Radnatarov, P. Zhulanova, I. Gromov, S. Kobtsev

Proceedings Volume 13237, 132371H (2024) https://doi.org/10.1117/12.3036199

KEYWORDS: Semiconductor lasers, Wavefronts, Gaussian beams, Optical components, Optical design, Optical pumping, Freeform optics, Wave propagation, Laser radiation, Blue lasers

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Proceedings Article | 23 November 2024 Poster + Paper

Suppression of light shifts in pulsed CPT atomic clock using combined error signal in Ramsey spectroscopy

D. Radnatarov, S. Kobtsev, I. Gromov, P. Zhulanova, M. Basalaev, V. Yudin

Proceedings Volume 13246, 132461G (2024) https://doi.org/10.1117/12.3036206

KEYWORDS: Laser frequency, Atomic clocks, Spectroscopy, Modulation frequency, Modulation, Bragg cells, Signal detection, Electrooptic modulators, Calibration

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Proceedings Article | 27 November 2023 Poster + Paper

Phase front reconstruction by optical phase conjugation

D. Radnatarov, S. Kobtsev

Proceedings Volume 12768, 1276827 (2023) https://doi.org/10.1117/12.2687432

KEYWORDS: Wavefronts, Spatial light modulators, Phase reconstruction, Reconstruction algorithms, Bessel beams, Gaussian beams, Geometrical optics, Modeling, Light wave propagation, Wavefront reconstruction

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Proceedings Article | 27 November 2023 Poster + Paper

Hyper-polarisation of xenon nuclei by spin-exchange optical pumping with broadband diode laser in an optically opaque medium

D. Radnatarov, S. Kobtsev

Proceedings Volume 12761, 1276112 (2023) https://doi.org/10.1117/12.2687439

KEYWORDS: Xenon, Polarization, Rubidium, Spectroscopy, Chemical species, Semiconductor lasers, Opacity, Polarizers, Absorption, Optical pumping

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Proceedings Article | 26 November 2023 Poster + Paper

Atomic clock on the basis of the CPT effect in counter-propagating circularly polarised waves

D. Radnatarov, S. Kobtsev, I. Gromov, P. Kozmina, M. Basalaev, V. Yudin

Proceedings Volume 12775, 127751G (2023) https://doi.org/10.1117/12.2687435

KEYWORDS: Mirrors, Atomic clocks, Laser radiation, Laser frequency, Reflection, Transmittance, Rubidium, Polarization, Magnetism

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Proceedings Article | 28 December 2022 Poster + Paper

Incoherent laser

S. Kobtsev

Proceedings Volume 12310, 1231019 (2022) https://doi.org/10.1117/12.2642207

KEYWORDS: Fiber lasers, Mode locking, Lithium, Pulsed laser operation, Polarization, Oscillators, Ultrafast phenomena, Solitons, Nonlinear optics, Sun

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Proceedings Article | 3 October 2022 Poster + Paper

Fibre-optical platform for research and applications

S. Kobtsev

Proceedings Volume 12196, 121960G (2022) https://doi.org/10.1117/12.2632575

KEYWORDS: Polarization, Chemical elements, Optical fibers, Fiber optic components, Fiber lasers, Laser development, Scientific research, Radiation effects, Prototyping, Waveguides

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Proceedings Article | 30 September 2022 Poster + Paper

Benchtop 129Xe optical polarizer for NMR applications

D. Radnatarov, S. Kobtsev, V. Andryushkov

Proceedings Volume 12231, 122310J (2022) https://doi.org/10.1117/12.2632572

KEYWORDS: Xenon, Polarizers, Polarization, Absorption, Rubidium, Spectroscopy, Semiconductor lasers, Magnetism, Alkali metals, Optical pumping

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Proceedings Article | 5 March 2022 Poster + Paper

Radiation monitoring of lasers with variable output

Sergey Kobtsev

Proceedings Volume 12009, 120090M (2022) https://doi.org/10.1117/12.2609213

KEYWORDS: Speckle pattern, Speckle, Reflectivity, Wavefront sensors, Speckle interferometry, Measurement devices, Optical fibers, Laser systems engineering, Image processing, Cameras

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Proceedings Article | 4 March 2022 Poster + Paper

Properties of supercontinuum formed from different chaotic bunches

A. Ivanenko, M. Mishevsky, G. Vishnyakov, B. Nyushkov, S. Smirnov, S. Kobtsev

Proceedings Volume 11985, 119850J (2022) https://doi.org/10.1117/12.2609199

KEYWORDS: Polarization, Picosecond phenomena, Raman scattering, Fiber lasers, Raman spectroscopy, Optical isolators, Optical amplifiers, Mode locking, Ytterbium, Semiconductor lasers

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Proceedings Article | 9 October 2021 Poster + Paper

High-efficiency in-fiber nonlinear conversion of nanosecond optical pulses into structured packets of high-peak-power ultrashort pulses

Igor Korel, Boris Nyushkov, Anastasia Yu. Kutishcheva, Sergey Kobtsev

Proceedings Volume 11905, 119051J (2021) https://doi.org/10.1117/12.2601237

KEYWORDS: Optical fibers, Ultrafast phenomena, Nonlinear optics, Picosecond phenomena, Dispersion, Solitons, Single mode fibers, Raman scattering, Molecules, Modulation

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Proceedings Article | 9 October 2021 Poster + Paper

Noise-like pulses: useful or harmful?

S. Kobtsev

Proceedings Volume 11905, 119051K (2021) https://doi.org/10.1117/12.2601260

KEYWORDS: Fiber lasers, Pulsed laser operation, Mode locking, Materials processing, Femtosecond phenomena, Picosecond phenomena, Laser applications, Stochastic processes, Optical pumping, Laser development

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Proceedings Article | 9 October 2021 Paper

Analysis of the coherent properties of ultrashort pulses inside embedded cavities of mode-locked fiber laser and Raman oscillator

Alexey Kokhanovskiy, Sergey Smirnov, Sergey Kobtsev

Proceedings Volume 11905, 119051N (2021) https://doi.org/10.1117/12.2602637

KEYWORDS: Mode locking, Raman spectroscopy, Oscillators, Fiber lasers, Raman scattering, Ultrafast phenomena, Laser scattering, Laser systems engineering, Picosecond phenomena, Nonlinear optics

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Proceedings Article | 1 August 2021 Presentation

Method of laser pulse amplification

S. Kobtsev

Proceedings Volume 11815, 118150S (2021) https://doi.org/10.1117/12.2594935

KEYWORDS: Pulsed laser operation, Physics, Nonlinear optics, Laser applications

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Proceedings Article | 1 August 2021 Presentation

Ultrashort-pulsed all-fibre lasers: trends and prospects

S. Kobtsev

Proceedings Volume 11815, 118150P (2021) https://doi.org/10.1117/12.2594364

KEYWORDS: Fiber lasers, Electronic components, Analytical research, Semiconductors, Pulsed fiber lasers, Optical fibers, Optical components, Continuous wave operation

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Proceedings Article | 1 August 2021 Presentation + Paper

Suppression of light-field shift of CPT resonances in optically dense media

D. Radnatarov, S. Kobtsev, V. Andryushkov, T. Steschenko

Proceedings Volume 11817, 118170O (2021) https://doi.org/10.1117/12.2594975

KEYWORDS: Modulation, Rubidium, Absorption, Chemical species, Atomic clocks, Absorbance, Semiconductor lasers, Vertical cavity surface emitting lasers, Polarization, Optical amplifiers

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Proceedings Article | 5 November 2020 Paper

Physical fundamentals electronic control over generation properties of all-fibre mode-locked lasers

Sergey Kobtsev

Proceedings Volume 11562, 1156208 (2020) https://doi.org/10.1117/12.2575006

KEYWORDS: Control systems, Mode locking, Fiber lasers, Polarization, Laser applications, Pulsed laser operation, Solitons, Oscillators

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Proceedings Article | 10 October 2020 Poster + Paper

Synthesis of periodic and aperiodic arbitrary waveforms in a SOA-fibre laser

Boris Nyushkov, Sergey Kobtsev, Aleksey Ivanenko, Sergey Smirnov

Proceedings Volume 11547, 115471C (2020) https://doi.org/10.1117/12.2573933

KEYWORDS: Semiconductor lasers, Mode locking, Pulsed laser operation, Waveguides, Electro optics, Switches, Laser applications, Laser optics, Physics, Active optics

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Proceedings Article | 10 October 2020 Poster + Paper

Mechanisms of conversion of noise-like laser pulses into coherent pulses

Sergey Kobtsev, Alexey Kokhanovskiy, Sergey Smirnov

Proceedings Volume 11558, 115580Q (2020) https://doi.org/10.1117/12.2573897

KEYWORDS: Mode locking, Fiber lasers, Femtosecond phenomena, Oscillators, Pulsed laser operation, Fiber amplifiers, Optical amplifiers

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Proceedings Article | 10 October 2020 Poster + Paper

Control of sub-pulse duration in noise-like structures

A. Ivanenko, B. Nyushkov, S. Smirnov, S. Kobtsev, A. Kokhanovskiy

Proceedings Volume 11558, 115580P (2020) https://doi.org/10.1117/12.2573871

KEYWORDS: Mode locking, Fiber lasers, Oscillators, Picosecond phenomena, Femtosecond phenomena, Optical filters, Nonlinear filtering, Electronic filtering, Control systems, Polarization

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Proceedings Article | 10 October 2020 Poster + Paper

Possibilities and limitations of electronic control over radiation parameters of all-fibre mode-locked lasers

Sergey Kobtsev

Proceedings Volume 11547, 1154718 (2020) https://doi.org/10.1117/12.2573550

KEYWORDS: Fiber lasers, Control systems, Mode locking, Polarization, Solitons, Laser applications, Bragg gratings, Fiber Bragg gratings, Mirrors

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Proceedings Article | 22 August 2020 Poster + Paper

Quantum vector magnetometer based on the CPT effect in 87Rb vapour

V. Andryushkov, D. Radnatarov, S. Kobtsev, A. Dambuev

Proceedings Volume 11507, 115070N (2020) https://doi.org/10.1117/12.2568340

KEYWORDS: Magnetism, Magnetometers, Rubidium, Atomic clocks, Chemical oxygen iodine lasers, Polarization, Laser stabilization, Thermography, Semiconductor lasers

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Proceedings Article | 21 August 2020 Poster + Paper

Comparison of quantum CPT and EPR magnetometers

Daba Radnatarov, Valerii Andryushkov, Sergey Kobtsev

Proceedings Volume 11483, 114830S (2020) https://doi.org/10.1117/12.2568335

KEYWORDS: Magnetometers, Magnetism, Rubidium, Atomic clocks, Modulation, Optical amplifiers, Semiconductor lasers, Frequency modulation, Calibration

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Proceedings Article | 20 August 2020 Poster + Paper

Phenomena of down-conversion from incoherent to coherent laser pulses

A. Kokhanovskiy, S. Smirnov, S. Kobtsev

Proceedings Volume 11498, 114980S (2020) https://doi.org/10.1117/12.2568325

KEYWORDS: Raman spectroscopy, Mode locking, Solitons, Saturable absorption, Oscillators, Photonic devices, Fiber lasers, Femtosecond phenomena, Raman scattering

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Proceedings Article | 20 August 2020 Poster + Paper

Photonic platform for finely controllable generation of multi-bound waves

A. Kokhanovskiy, S. Smirnov, S. Kobtsev

Proceedings Volume 11461, 114612N (2020) https://doi.org/10.1117/12.2568329

KEYWORDS: Solitons, Fiber lasers, Mode locking, Raman scattering, Semiconductor lasers, Raman spectroscopy, Laser resonators, Ultrafast phenomena, Nonlinear dynamics

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Proceedings Article | 18 December 2019 Paper

Electro-optically gated in-line saturable absorbers for fibre lasers

Yury Gladush, Aram Mkrtchyan, Boris Nyushkov, Aleksey Ivanenko, Alexey Kokhanovskiy, Sergey Kobtsev, Albert Nasibulin

Proceedings Volume 11333, 113331M (2019) https://doi.org/10.1117/12.2550646

KEYWORDS: Fiber lasers, Electro optics, Mode locking, Wavelength division multiplexing, Polymers, Carbon nanotubes, Semiconductor lasers, Switching, Carbon, Multiplexers

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Proceedings Article | 18 December 2019 Paper

CPT-based atomic clock with Rb vapour cell fabricated by direct optical bonding

S. Kobtsev, S. Donchenko, S. Khripunov, D. Radnatarov, I. Blinov, V. Palchikov

Proceedings Volume 11334, 113341E (2019) https://doi.org/10.1117/12.2550611

KEYWORDS: Alkali metals, Atomic clocks, Rubidium, Glasses, Optical components, Surface finishing, Helium, Optics manufacturing, Optical fabrication, Standards development

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Proceedings Article | 19 November 2019 Paper

Features of a CPT-based atomic clock with pumping by different-order sidebands of a VCSEL's frequency

D. Radnatarov, S. Kobtsev, V. Andryushkov, S. Khripunov

Proceedings Volume 11195, 111950Y (2019) https://doi.org/10.1117/12.2537607

KEYWORDS: Atomic clocks, Microwave radiation, Modulation, Vertical cavity surface emitting lasers, Rubidium, Clocks, Semiconductor lasers, Chemical species, Oscillators, Thin films

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Proceedings Article | 19 November 2019 Paper

New method of wavelength stabilisation in CPT atomic clocks

Sergey Kobtsev, Daba Radnatarov, Sergey Khripunov, Valerii Andryushkov, Yurii Zarudnev

Proceedings Volume 11184, 1118414 (2019) https://doi.org/10.1117/12.2537814

KEYWORDS: Vertical cavity surface emitting lasers, Atomic clocks, Modulation, Rubidium, Laser stabilization, Photodetectors, Semiconductor lasers, Feedback loops, Absorption, Control systems

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Proceedings Article | 19 November 2019 Paper

Nearly arbitrary pulse shaping in mode-locked gain-modulated SOA-fibre laser

Boris Nyushkov, Sergey Kobtsev, Aleksey Ivanenko, Sergey Smirnov

Proceedings Volume 11184, 1118410 (2019) https://doi.org/10.1117/12.2536883

KEYWORDS: Mode locking, Pulsed laser operation, Pulse shaping, Physics, Femtosecond phenomena, Fiber lasers, Profiling, Electro optics, Laser sources

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Proceedings Article | 18 November 2019 Paper

Mode-locked fibre laser with e-controlled cavity length in ultra-wide range

A. Ivanenko, S. Kobtsev, B. Nyushkov, K. Serebrennikov, D. Lutsenko

Proceedings Volume 11193, 111931B (2019) https://doi.org/10.1117/12.2537795

KEYWORDS: Mode locking, Fiber lasers, Modulation, Pulsed laser operation, Resonators, Laser resonators, Switching, Control systems, Radio optics, Optical switching

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Proceedings Article | 7 March 2019 Paper

Fibre Raman laser generated clusters of femtosecond pulses at 1270 nm

Sergey Kobtsev, Aleksey Ivanenko, Alexey Kokhanovsky, Mikhail Gervaziev, Sergey Smirnov

Proceedings Volume 10897, 108972M (2019) https://doi.org/10.1117/12.2511026

KEYWORDS: Raman spectroscopy, Fiber lasers, Femtosecond phenomena, Mode locking, Femtosecond fiber lasers, Optical fibers, Pulsed laser operation, Picosecond phenomena, Semiconductor lasers, Laser applications

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Proceedings Article | 7 March 2019 Paper

Hybrid SOA/fibre topology for actively mode-locked laser with extended pulse-shaping capability

Sergey Kobtsev, Boris Nyushkov

Proceedings Volume 10896, 1089620 (2019) https://doi.org/10.1117/12.2509709

KEYWORDS: Mode locking, Modulation, Pulsed laser operation, Fiber lasers, Semiconductor optical amplifiers, Fiber Bragg gratings, Modulators, Continuous wave operation, Laser resonators, Spectrum analysis

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Proceedings Article | 4 March 2019 Paper

Raman transformation properties of partially coherent laser pulses in phosphorus-doped silica fibre

Sergey Kobtsev, Aleksey Ivanenko, Alexey Kokhanovskiy, Mikhail Gervaziev, Sergey Smirnov

Proceedings Volume 10902, 109021F (2019) https://doi.org/10.1117/12.2509750

KEYWORDS: Mode locking, Raman spectroscopy, Fiber lasers, Phase shifts, Second-harmonic generation, Silica, Coherence (optics), Femtosecond phenomena, Polarization, Oscillators

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Proceedings Article | 9 November 2018 Paper

Coherence automatic adjustment of the optical pulses inside mode-lock fiber laser cavity

A. Kokhanovskiy, A. Ivanenko, S. Kobtsev, S. Turitsyn

Proceedings Volume 10825, 1082518 (2018) https://doi.org/10.1117/12.2500786

KEYWORDS: Fiber lasers, Mode locking, Genetic algorithms, Coherence (optics), Laser resonators, Picosecond phenomena, Laser systems engineering, Fiber amplifiers, Machine learning, Diodes

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Proceedings Article | 9 November 2018 Paper

New generation regimes in mode-locked fibre lasers with controllable radiation intensity distribution along the cavity

Sergey Kobtsev, Sergey Smirnov

Proceedings Volume 10825, 1082519 (2018) https://doi.org/10.1117/12.2500837

KEYWORDS: Mode locking, Fiber lasers, Dispersion, Optical fibers, Pulsed laser operation, Optical amplifiers, Laser resonators, Laser applications, Nonlinear optics, Optical isolators

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Proceedings Article | 5 November 2018 Paper

Topologically optimised mode-locked Er:fibre laser with record wide tunability of femtosecond pulses

Sergey Kobtsev, Boris Nyushkov, Natalia Koliada, Victor Pivtsov

Proceedings Volume 10814, 1081414 (2018) https://doi.org/10.1117/12.2500398

KEYWORDS: Mode locking, Femtosecond phenomena, Fiber lasers, Wavelength tuning, Diffraction gratings, Optical components, Pulsed laser operation, Laser development, Laser resonators, Wavelength division multiplexing

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Proceedings Article | 5 November 2018 Paper

Topological engineering of mode-locked fibre lasers: NALM/NALM2 technologies

A. Ivanenko, A. Kokhanovsky, M. Gervaziev, S. Smirnov, S. Kobtsev, S. Turitsyn

Proceedings Volume 10811, 1081117 (2018) https://doi.org/10.1117/12.2501243

KEYWORDS: Mode locking, Fiber lasers, Laser applications, Laser resonators, Laser systems engineering

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Proceedings Article | 22 February 2018 Paper

Tuneable powerful UV laser system with UV noise eater

Sergey Kobtsev, Daba Radnatarov, Sergey Khripunov, Yurii Zarudnev

Proceedings Volume 10539, 105391C (2018) https://doi.org/10.1117/12.2291374

KEYWORDS: Ultraviolet radiation, Laser systems engineering, Waveguides, Tunable lasers, Harmonic generation, Quartz, Mirrors, Nonlinear crystals, Laser stabilization, Laser applications

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Proceedings Article | 22 February 2018 Paper

Atomic clock stability under dynamic excitation of coherent population trapping resonance in cells without buffer gas

Sergey Kobtsev, Daba Radnatarov , Sergey Khripunov , Ivan Popkov, Valerii Andryushkov, Tatiana Steschenko

Proceedings Volume 10548, 1054820 (2018) https://doi.org/10.1117/12.2288872

KEYWORDS: Atomic clocks, Coating, Chemical species, Alkali metals, Rubidium, Modulation, Navigation systems, Satellite navigation systems, Satellites, Telecommunications

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Proceedings Article | 22 February 2018 Paper

Mode-locked NALM-based fibre laser with controllable operation regimes

Sergey Kobtsev, Alexey Ivanenko

Proceedings Volume 10528, 105281R (2018) https://doi.org/10.1117/12.2289361

KEYWORDS: Mode locking, Fiber lasers, Mirrors, Oscillators, Picosecond phenomena, Laser development, Semiconductor lasers, Control systems, Computing systems, Pulsed laser operation

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Proceedings Article | 16 February 2018 Paper

New topologies of femtosecond Er:fibre laser cavities

Sergey Kobtsev, Boris Nyushkov, Natalia Koliada , Alexander Antropov, Victor Pivtsov , Arkadii Yakovlev

Proceedings Volume 10518, 1051820 (2018) https://doi.org/10.1117/12.2289080

KEYWORDS: Mode locking, Fiber lasers, Pulsed laser operation, Mirrors, Polarization, Diffraction gratings, Laser resonators, Wavelength tuning, Optical collimators, Optical isolators

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Proceedings Article | 15 February 2018 Paper

Modified nonlinear amplifying loop mirror for mode-locked fibre oscillators with record-high energy and high-average-power pulsed output

Sergey Kobtsev, Alexey Ivanenko, Sergey Smirnov, Alexey Kokhanovsky

Proceedings Volume 10516, 105161H (2018) https://doi.org/10.1117/12.2288853

KEYWORDS: Mode locking, Oscillators, Fiber lasers, Mirrors, Pulsed laser operation, Nonlinear control, Laser resonators, Polarization, Modeling, Picosecond phenomena

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Proceedings Article | 22 February 2017 Paper

Mode locking of a fibre laser with a matrix-less carbon nanotube film

Sergey Kobtsev, Albert Nasibulin, Yurii Gladush, Alexey Ivanenko

Proceedings Volume 10083, 1008329 (2017) https://doi.org/10.1117/12.2251497

KEYWORDS: Fiber lasers, Mode locking, Carbon nanotubes, Erbium, Aerosols, Matrices, Polymers, Fiber amplifiers, Picosecond phenomena, Q switches, Polymer thin films, Single walled carbon nanotubes, Nanolithography

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Proceedings Article | 20 February 2017 Presentation + Paper

New method for enhancement of contrast of coherent population trapping resonance in Rb vapour

Sergey Khripunov, Sergey Kobtsev, Daba Radnatarov, Ivan Popkov, Valeriy Andryushkov, Tatiana Steschenko, Vladimir Lunin, Yury Zarudnev

Proceedings Volume 10119, 1011905 (2017) https://doi.org/10.1117/12.2251522

KEYWORDS: Feedback loops, Digital signal processing, Photodetectors, Signal to noise ratio, Resonance enhancement, Rubidium, Absorption, Electrooptic modulators, Electro optics, Modulators, Coating, Metrology, Atomic clocks, Magnetometers

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Proceedings Article | 3 November 2016 Paper

Feedback enhancement of the amplitude of dynamically excited coherent population trapping resonance in Rb vapour

Daba Radnatarov, Sergey Khripunov, Sergey Kobtsev, Alexey Taichenachev, Valery Yudin, Maxim Basalaev, Ivan Popkov, Valeriy Andryushkov, Tatiana Steschenko

Proceedings Volume 10029, 100291K (2016) https://doi.org/10.1117/12.2247794

KEYWORDS: Resonance enhancement, Rubidium, Chemical species, Feedback loops, Modulators, Luminescence, Semiconductor lasers, Electrooptic modulators, Electro optics, Vertical cavity surface emitting lasers

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Proceedings Article | 3 November 2016 Paper

Fibre amplifying loop mirror with nonlinearity independent of the intensity of intra-cavity radiation

Sergey Kobtsev, Sergey Smirnov, Alexey Ivanenko

Proceedings Volume 10029, 100291J (2016) https://doi.org/10.1117/12.2247757

KEYWORDS: Reflectivity, Mirrors, Fiber lasers, Mode locking, Fiber amplifiers, Pulsed laser operation, Computer simulations, Semiconductor lasers, Polarization, Picosecond phenomena

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Proceedings Article | 31 October 2016 Paper

RF spectral analysis for characterisation of mode-locked regimes in fibre lasers

Alexey Ivanenko, Sergey Kobtsev, Alexey Kokhanovskiy, Sergey Smirnov

Proceedings Volume 10019, 100191F (2016) https://doi.org/10.1117/12.2247754

KEYWORDS: Mode locking, Fiber lasers, Signal to noise ratio, Interference (communication), Polarization, Spectrum analysis, Ytterbium, Pulsed laser operation, Semiconductor lasers, Picosecond phenomena

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Proceedings Article | 11 March 2016 Paper

Switchable dual-pulse-shape mode-locked figure-eight all-PM fibre master oscillator with 0.5 W-level average output

Sergey Kobtsev, Aleksey Ivanenko, Yurii Fedotov, Sergey Smirnov, Artur Golubtsov, Sergey Khripunov

Proceedings Volume 9728, 97281M (2016) https://doi.org/10.1117/12.2211462

KEYWORDS: Oscillators, Switching, Mode locking, Fiber lasers, Mirrors, Pulsed laser operation, Picosecond phenomena, Femtosecond phenomena, Polarization, Ultrafast lasers, Singular optics, Active optics

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Proceedings Article | 9 March 2016 Paper

Modelling of noise-like pulses generated in fibre lasers

Sergey Smirnov, Sergey Kobtsev

Proceedings Volume 9732, 97320S (2016) https://doi.org/10.1117/12.2211603

KEYWORDS: Fiber lasers, Mode locking, Modeling, Femtosecond phenomena, Data modeling, Statistical modeling, Polarization, Energy efficiency, Optical simulations, Materials processing, Pulsed laser operation, Picosecond phenomena, Frequency conversion

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Proceedings Article | 7 March 2016 Paper

Effect of electromagnetically induced transparency delay generated by dynamic coherent population trapping in Rb vapour

Daba Radnatarov, Sergey Khripunov, Sergey Kobtsev, Alexey Taichenachev, Valeriy Yudin, Maxim Basalaev, Ivan Popkov, Valeriy Andryushkov

Proceedings Volume 9763, 97630A (2016) https://doi.org/10.1117/12.2209470

KEYWORDS: Transparency, Rubidium, Atomic clocks, Clocks, Signal to noise ratio, Quantum optics, Nonlinear optics, Magnetometers, Modulation, Phase shift keying, Chemical species, Magnetism, Alkali metals, Optical amplifiers

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SPIE Journal Paper | 19 March 2015

Simple digital system for tuning and long-term frequency stabilization of a CW Ti:Sapphire laser

Ilya Beterov, Asparuh G. Markovski, Sergey Kobtsev, Elena Yakshina, Vasily Entin, Denis Tretyakov, Vladimir Baraulya, Igor Ryabtsev

OE, Vol. 54, Issue 03, 034111, (March 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.3.034111

KEYWORDS: Laser stabilization, Sapphire lasers, Ferroelectric materials, Semiconductor lasers, Chemical species, Continuous wave operation, Rubidium, Confocal microscopy, Laser systems engineering, Laser spectroscopy

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Proceedings Article | 10 March 2015 Paper

Atomic clock based on a coherent population trapping resonance in 87Rb with improved high-frequency modulation parameters

Sergey Khripunov, Daba Radnatarov, Sergey Kobtsev

Proceedings Volume 9378, 93780A (2015) https://doi.org/10.1117/12.2080165

KEYWORDS: Modulation, Semiconductor lasers, Atomic clocks, Rubidium, Prototyping, Spherical lenses, Coating, Quartz, Control systems, Optical components

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Proceedings Article | 4 March 2015 Paper

High-average-output mode-locked figure-eight all-fibre Yb master oscillator

Sergey Kobtsev, Yuri Fedotov, Aleksey Ivanenko

Proceedings Volume 9344, 934428 (2015) https://doi.org/10.1117/12.2080621

KEYWORDS: Mode locking, Oscillators, Picosecond phenomena, Fiber lasers, Polarization, Ytterbium, Laser resonators, Pulsed laser operation, Roentgenium, Laser applications

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Proceedings Article | 27 February 2015 Paper

Supercontinuum from single- and double-scale fiber laser pulses in long extra-cavity P2O5-doped silica fiber

Sergey Kobtsev, Sergey Kukarin, Sergey Smirnov

Proceedings Volume 9347, 93471X (2015) https://doi.org/10.1117/12.2079983

KEYWORDS: Fiber lasers, Raman scattering, Picosecond phenomena, Oscillators, Raman spectroscopy, Fiber amplifiers, Optical fibers, Optical amplifiers, Mode locking, Polarization

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Proceedings Article | 1 May 2014 Paper

CW Yb-fibre laser with wavelength-variable efficient intracavity frequency doubling in partially coupled enhancement cavity

Sergey Khripunov, Daba Radnatarov, Sergey Kobtsev, Aleksey Skorkin

Proceedings Volume 9135, 91350E (2014) https://doi.org/10.1117/12.2051876

KEYWORDS: Fiber lasers, Mirrors, Resonators, Second-harmonic generation, Harmonic generation, Reflectivity, Nonlinear crystals, Crystals, Prisms, Laser resonators

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Proceedings Article | 1 May 2014 Paper

High-power CW single-frequency Nd:YVO4/LBO laser quasi-continuously tuneable over a wide frequency range

Daba Radnatarov, Sergey Khripunov, Sergey Kobtsev, V. Lunin

Proceedings Volume 9135, 91350F (2014) https://doi.org/10.1117/12.2051880

KEYWORDS: Fabry–Perot interferometers, Ferroelectric materials, Laser resonators, Tunable lasers, Wavefront sensors, Modulation, Crystals, Semiconductor lasers, Mirrors, Interferometers

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Proceedings Article | 1 May 2014 Paper

Extent of parameter variability for different pulses from a passively mode-locked fibre laser

S. Kobtsev, S. Smirnov, S. Kukarin, A. Ivanenko

Proceedings Volume 9135, 91351K (2014) https://doi.org/10.1117/12.2052051

KEYWORDS: Mode locking, Fiber lasers, Polarization, Pulsed laser operation, Picosecond phenomena, Numerical modeling, Modeling, Stochastic processes, Solitons, Laser resonators

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Proceedings Article | 1 May 2014 Paper

Self-start of passively mode-locked ring fibre oscillator as a function of pump power

S. Kobtsev, S. Smirnov, S. Khripunov, D. Radnatarov, S. Kukarin, A. Ivanenko

Proceedings Volume 9135, 913522 (2014) https://doi.org/10.1117/12.2052619

KEYWORDS: Mode locking, Fiber lasers, Polarization, Wave plates, Phase shifts, Pulsed laser operation, Optical fibers, Liquid crystals, Optical simulations, Oscillators

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Proceedings Article | 22 March 2010 Paper

Powerful narrow-line source of blue light for laser cooling Yb/Er and Dysprosium atoms

Sergey Kobtsev, Benjamin Lev, József Fortagh, Vladimir Baraulya

Proceedings Volume 7578, 75782F (2010) https://doi.org/10.1117/12.841632

KEYWORDS: Sapphire lasers, Crystals, Chemical species, Laser crystals, Dysprosium, Light, Continuous wave operation, Mirrors, Laser systems engineering, Laser development

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Proceedings Article | 17 February 2010 Paper

Ultra-wide-tunable fibre source of femto- and picosecond pulses based on intracavity Raman conversion

Sergey Kobtsev, Sergey Kukarin, Sergey Smirnov, Yurii Fedotov

Proceedings Volume 7580, 758023 (2010) https://doi.org/10.1117/12.840860

KEYWORDS: Fiber lasers, Raman spectroscopy, Polarization, Reflectors, Picosecond phenomena, Oscillators, Wavelength tuning, Mirrors, Laser resonators, Beam splitters

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Proceedings Article | 17 February 2010 Paper

Different generation regimes of mode-locked all-positive-dispersion all-fiber Yb laser

Sergey Kobtsev, Sergey Kukarin, Sergey Smirnov, Sergei Turitsyn, Anton Latkin

Proceedings Volume 7580, 758028 (2010) https://doi.org/10.1117/12.841237

KEYWORDS: Polarization, Numerical modeling, Fiber lasers, Mode locking, Pulsed laser operation, Switching, Numerical simulations, Laser resonators, Ytterbium, Picosecond phenomena

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Proceedings Article | 28 February 2009 Paper

Q-switched hybrid MOPA laser system based on Yb fibre with side pumping by single source

Sergey Kobtsev, Sergey Kukarin, Yurii Fedotov

Proceedings Volume 7193, 71932Q (2009) https://doi.org/10.1117/12.809380

KEYWORDS: Oscillators, Fiber amplifiers, Optical amplifiers, Laser systems engineering, Ytterbium, Optical pumping, Q switched lasers, Polarization, Fiber lasers, Pulsed laser operation

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Proceedings Article | 28 February 2009 Paper

Wide-autoscanned narrow-line tunable system based on CW Ti:Sapphire/dye laser for high-precision experiments in nanophysics

Sergey Kobtsev, Vladimir Baraulya, Vladimir Lunin

Proceedings Volume 7193, 71932S (2009) https://doi.org/10.1117/12.809969

KEYWORDS: Tunable lasers, Continuous wave operation, Dye lasers, Laser systems engineering, Sapphire lasers, Computing systems, Laser development, Quantum dots, Fabry–Perot interferometers, Wavefront sensors

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Proceedings Article | 24 February 2009 Paper

Supercontinuum generators with CW and pulsed pump: temporal structure and dynamic control of parameters

Sergey Kobtsev, Sergey Smirnov

Proceedings Volume 7197, 71971A (2009) https://doi.org/10.1117/12.809398

KEYWORDS: Solitons, Optical fibers, Modulation, Scanning probe microscopy, Stochastic processes, Numerical modeling, Amplitude modulation, Spectroscopy, Wavelength division multiplexing

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Proceedings Article | 5 March 2008 Paper

Long-term frequency stabilisation of a CW single-frequency laser using a high-precision wavelength meter

Sergey Kobtsev, Stepan Kandrushin, Andrey Potekhin

Proceedings Volume 6871, 68712H (2008) https://doi.org/10.1117/12.761813

KEYWORDS: Wavefront sensors, Laser stabilization, Continuous wave operation, Dye lasers, Computing systems, Control systems, Interferometers, Tunable lasers, Sapphire lasers, Semiconductor lasers

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Proceedings Article | 20 February 2008 Paper

Hybrid bulk/fibre MOPA system based on Yb:KYW laser

Sergey Kobtsev, Sergey Kukarin

Proceedings Volume 6871, 68710Y (2008) https://doi.org/10.1117/12.761774

KEYWORDS: Fiber amplifiers, Optical amplifiers, Mirrors, Ytterbium, Semiconductor lasers, Laser systems engineering, Laser development, Laser applications, Solid state lasers

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Proceedings Article | 13 February 2008 Paper

CW- and pulse-pumped fiber super-continuum generators

Sergey Kobtsev, Sergey Smirnov

Proceedings Volume 6875, 68750S (2008) https://doi.org/10.1117/12.762244

KEYWORDS: Modulation, Time resolved spectroscopy, Wave propagation, Solitons, Amplitude modulation, Numerical simulations, Metrology, Spectroscopy, Optical coherence tomography

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Proceedings Article | 10 August 2007 Paper

New approach to long-term frequency stabilisation of radiation of single-frequency lasers

Sergey Kobtsev, Stepan Kandrushin, Andrey Potekhin

Proceedings Volume 6731, 67312U (2007) https://doi.org/10.1117/12.753015

KEYWORDS: Laser stabilization, Wavefront sensors, Dye lasers, Computing systems, Control systems, Continuous wave operation, Interferometers, Semiconductor lasers, Tunable lasers, Absorption

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Proceedings Article | 13 April 2007 Paper

Effect of phase modulation of femtosecond pump pulses on the spectral and coherence properties of super-continuum with strongly pronounced soliton structures in its spectrum

Sergey Kobtsev, Sergey Kukarin, Nikolay Fateev, Sergey Smirnov

Proceedings Volume 6612, 66120C (2007) https://doi.org/10.1117/12.740160

KEYWORDS: Solitons, Phase modulation, Femtosecond phenomena, Metrology, Numerical simulations, Michelson interferometers, CCD cameras, Laser systems engineering, Fiber lasers, Coherence (optics)

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Proceedings Article | 4 April 2007 Paper

Efficient resonant doubler of CW tunable single-frequency radiation with a 1-THz automatic quasi-smooth scan range

Sergey Kobtsev, Vladimir Baraulya, Vladimir Lunin

Proceedings Volume 6610, 66100Q (2007) https://doi.org/10.1117/12.740021

KEYWORDS: Terahertz radiation, Nonlinear crystals, Resonators, Continuous wave operation, Sapphire lasers, Laser resonators, Mirrors, Tunable lasers, Crystals, Phase matching

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Proceedings Article | 4 April 2007 Paper

Efficient second-harmonic generation of CW radiation in an external optical cavity using non-linear crystal BIBO

Sergey Kobtsev, Alexander Zavyalov

Proceedings Volume 6610, 66100P (2007) https://doi.org/10.1117/12.740016

KEYWORDS: Crystals, Nonlinear crystals, Resonators, Laser crystals, Mirrors, Second-harmonic generation, Optical resonators, Harmonic generation, Continuous wave operation

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Proceedings Article | 4 April 2007 Paper

Combined CW ring single-frequency Ti:sapphire/dye laser for atom cooling and high-precision spectroscopy

Sergey Kobtsev, Vladimir Baraulya, Vladimir Lunin

Proceedings Volume 6610, 66100A (2007) https://doi.org/10.1117/12.739828

KEYWORDS: Laser stabilization, Dye lasers, Sapphire lasers, Mirrors, Laser development, Interferometers, Resonators, Laser resonators, Continuous wave operation, Laser crystals

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Proceedings Article | 9 March 2007 Paper

Ultra-narrow-linewidth combined CW Ti:sapphire/dye laser for atom cooling and high-precision spectroscopy

Sergey Kobtsev, Vladimir Baraoulya, Vladimir Lunin

Proceedings Volume 6451, 64511U (2007) https://doi.org/10.1117/12.699241

KEYWORDS: Dye lasers, Mirrors, Interferometers, Laser stabilization, Continuous wave operation, Sapphire lasers, Ferroelectric materials, Resonators, Laser resonators, Spherical lenses

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Proceedings Article | 14 February 2007 Paper

Resonant doubler with a 2-THz automatic quasi-smooth scan range for widely tunable CW single-frequency lasers

Sergey Kobtsev, Vladimir Lunin

Proceedings Volume 6455, 645517 (2007) https://doi.org/10.1117/12.699290

KEYWORDS: Nonlinear crystals, Crystals, Terahertz radiation, Mirrors, Laser crystals, Resonators, Continuous wave operation, Sapphire lasers, Ferroelectric materials, Phase matching

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Proceedings Article | 3 May 2004 Paper

Optimization of temporal characteristics of supercontinuum generated in tapered air-clad fibers

Serguei Kobtsev, Serguei Smirnov

Proceedings Volume 5480, (2004) https://doi.org/10.1117/12.558530

KEYWORDS: Optical fibers, Dispersion, Numerical simulations, Solitons, Photonic crystal fibers, Picosecond phenomena, Solids, Femtosecond phenomena, Nonlinear optics, Frequency metrology

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Proceedings Article | 2 March 2001 Paper

Single-frequency stabilized dye jet laser pumped with a Cu-vapor laser through a fiber

V. Baraulya, S. Kobtsev, S. Kukarin, A. Pustovskikh, V. Sorokin

Proceedings Volume 4353, (2001) https://doi.org/10.1117/12.417732

KEYWORDS: Mirrors, Dye lasers, Waveguides, Laser stabilization, Interferometers, Fiber lasers, Resonators, Actuators, Diffraction gratings, Control systems

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Proceedings Article | 2 March 2001 Paper

Efficient autoscanned single-frequency cw dye laser

S. Kobtsev, A. Korablev, S. Kukarin, V. Sorokin

Proceedings Volume 4353, (2001) https://doi.org/10.1117/12.417733

KEYWORDS: Dye lasers, Resonators, Reflectors, Mirrors, Continuous wave operation, Fabry–Perot interferometers, Control systems, Laser resonators, Rhodamine, Laser stabilization

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Proceedings Article | 24 April 2000 Paper

Powerful single-frequency laser system based on a Cu-laser-pumped dye laser

V. Baraulya, S. Kobtsev, S. Kukarin, V. Sorokin

Proceedings Volume 4071, (2000) https://doi.org/10.1117/12.383458

KEYWORDS: Dye lasers, Oscillators, Interferometers, Laser systems engineering, Copper vapor lasers, Amplifiers, Laser development, Resonators, Laser stabilization, Pulsed laser operation

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Proceedings Article | 24 April 2000 Paper

Ti:sapphire laser pumped with a Cu vapor laser

S. Kobtsev, S. Kukarin, A. Pustovskikh, V. Sorokin

Proceedings Volume 4071, (2000) https://doi.org/10.1117/12.383446

KEYWORDS: Sapphire lasers, Crystals, Copper vapor lasers, Laser crystals, Mirrors, Ions, Photodynamic therapy, Laser development, Resonators, Femtosecond phenomena

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Proceedings Article | 20 May 1996 Paper

Investigation of a second harmonic generation in BBO inside a cavity of a cw linear dye laser with different pumping

Alexander Apolonski, S. Kobtsev, N. Sorokin

Proceedings Volume 2800, (1996) https://doi.org/10.1117/12.240508

KEYWORDS: Second-harmonic generation, Nonlinear crystals, Dye lasers, Crystals, Continuous wave operation, Mirrors, Laser crystals, Ultraviolet radiation, Harmonic generation, Argon ion lasers

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Showing 5 of 81 publications

Conference Committee Involvement (1)

ICONO/LAT 2013

18 June 2013 |

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