Dr. Hans-Jürgen Otto Profile

Dr. Hans-Jürgen Otto

Ph.D Student at TRUMPF Laser GmbH

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 12 March 2024 Presentation + Paper

Presentation + Paper

Kilowatt-class high repetition rate ultrafast lasers based on industrial slab and disk laser platforms

Michael Rampp, Benjamin Dannecker, Michael Scharun, Helge Hoeck, Dominik Bauer, Jochen Kleinbauer, Jonathan Brons, Hans-Jürgen Otto, Holger Diekamp, Aleksander Budnicki, Raphael Gebs, Klaus Albers, Torsten Mans, Sandro Klingebiel, Jonas Mertin, Ulf Quentin, Steffen Rübling, Christof Siebert, Claus Schnitzler, Dirk Sutter, Alexander Killi, Thomas Metzger

Proceedings Volume 12875, 128750G (2024) https://doi.org/10.1117/12.3002891

KEYWORDS: Ultrafast phenomena, Pulsed laser operation, Ultrafast lasers, Materials processing, Laser radiation, Laser processing, Disk lasers, Switching, Picosecond phenomena, High harmonic generation, Coherent x-ray sources, Bulk lasers

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Proceedings Article | 10 March 2020 Presentation

Presentation

Next generation of high-power industrial ultrafast lasers based on InnoSlab technology (Conference Presentation)

Dirk Sutter, Ulf Quentin, Florian Kanal, Hans-Jürgen Otto, Jan Dolkemeyer, Raphael Gebs, Marc Sailer, Jonas Kleiner, Aleksander Budnicki, Claus Schnitzler, Torsten Mans, Alexander Killi

Proceedings Volume 11259, 112591C (2020) https://doi.org/10.1117/12.2544720

KEYWORDS: Ultrafast lasers, High power lasers, Optical amplifiers, Fiber amplifiers, Laser cutting, Glasses, Pulsed laser operation, Femtosecond phenomena, Ultraviolet radiation, Sapphire

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Proceedings Article | 2 March 2020 Paper

Paper

Dynamic coherent beam combining based on a setup of microlens arrays

Maike Prossotowicz, Andreas Heimes, Daniel Flamm, Florian Jansen, Hans-Jürgen Otto, Aleksander Budnicki, Uwe Morgner, Alexander Killi

Proceedings Volume 11266, 1126612 (2020) https://doi.org/10.1117/12.2547303

KEYWORDS: Beam splitters, Microlens array, Optical simulations, Beam shaping, Diffraction, Phase matching, Ultrafast lasers, Mirrors, Optical amplifiers, Spatial light modulators

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Proceedings Article | 22 February 2017 Presentation + Paper

Presentation + Paper

The impact of core co-dopants on the mode instability threshold of high-power fiber laser systems

Cesar Jauregui, Hans-Jürgen Otto, Christoph Stihler, Jens Limpert, Andreas Tünnermann

Proceedings Volume 10083, 100830N (2017) https://doi.org/10.1117/12.2251830

KEYWORDS: Glasses, Laser systems engineering, Fiber lasers, High power fiber lasers, Aluminum, Fiber amplifiers, Absorption, Optical simulations, Applied physics

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Proceedings Article | 22 February 2017 Paper

Paper

Controlling mode instabilities at 628 W average output power in an Yb-doped rod-type fiber amplifier by active modulation of the pump power

Christoph Stihler, Cesar Jauregui, Hans-Jürgen Otto, Jens Limpert, Andreas Tünnermann

Proceedings Volume 10083, 100830P (2017) https://doi.org/10.1117/12.2252135

KEYWORDS: Modulation, Fiber amplifiers, Fiber lasers, Laser systems engineering, Thermal effects, Optical fibers, Ytterbium, Refractive index, Photodiodes, Diodes, Optical simulations, Optical components

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Proceedings Article | 22 February 2017 Paper

Paper

Experimental investigation of transverse mode instabilities in a double-pass Yb-doped rod-type fiber amplifier

Christoph Stihler, Hans-Jürgen Otto, Cesar Jauregui, Jens Limpert, Andreas Tünnermann

Proceedings Volume 10083, 100830R (2017) https://doi.org/10.1117/12.2252715

KEYWORDS: Fiber amplifiers, Fiber lasers, Thermal effects, Optical fibers, Laser systems engineering, Optical amplifiers, Oscillators, Amplifiers, Polarization, Refractive index, Beam propagation method, Mirrors

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Proceedings Article | 9 March 2016 Paper

Paper

Average power limit of fiber-laser systems with nearly diffraction-limited beam quality

Hans-Jürgen Otto, Cesar Jauregui, Jens Limpert, Andreas Tünnermann

Proceedings Volume 9728, 97280E (2016) https://doi.org/10.1117/12.2208670

KEYWORDS: Raman scattering, Fiber lasers, Ytterbium, Statistical analysis, Laser scattering, Fiber amplifiers, Laser development, Doping, Laser systems engineering, Absorption, Laser damage threshold, Amplifiers

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Proceedings Article | 9 March 2016 Paper

Paper

Optimizing the mode instability threshold of high-power fiber laser systems

Cesar Jauregui, Hans-Jürgen Otto, Sven Breitkopf, Jens Limpert, Andreas Tünnermann

Proceedings Volume 9728, 97280B (2016) https://doi.org/10.1117/12.2208948

KEYWORDS: Laser systems engineering, Fiber lasers, High power fiber lasers, Amplifiers, Fiber amplifiers, Oscillators, Laser damage threshold, Doping, Mirrors, Reflectivity, Ions, Optical fibers

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Proceedings Article | 4 March 2015 Paper

Paper

Recent progress in the understanding of mode instabilities

Cesar Jauregui, Hans-Jürgen Otto, Norbert Modsching, Jens Limpert, Andreas Tünnermann

Proceedings Volume 9344, 93440J (2015) https://doi.org/10.1117/12.2086843

KEYWORDS: Fiber lasers, Laser systems engineering, Laser damage threshold, Signal attenuation, Laser applications, Optical fibers, Energy transfer, Phase shifts, Amplifiers, Interference (communication)

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Proceedings Article | 4 March 2015 Paper

Paper

Wavelength dependence of maximal diffraction-limited output power of fiber lasers

Hans-Jürgen Otto, Norbert Modsching, Cesar Jauregui, Jens Limpert, Andreas Tünnermann

Proceedings Volume 9344, 93441Y (2015) https://doi.org/10.1117/12.2076894

KEYWORDS: Fiber lasers, Fiber Bragg gratings, Signal attenuation, Diffraction, Laser systems engineering, Absorption, Laser damage threshold, Oscillators, Switches, Amplifiers

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Proceedings Article | 12 March 2014 Paper

Paper

146W continuous wave ytterbium doped fiber amplifier at 1009 nm

F. Beier, H.-J. Otto, B. Sattler, M. Ploetner, N. Haarlammert, O. de Vries, C. Jauregui, T. Schreiber, J. Limpert, R. Eberhardt, A. Tünnermann

Proceedings Volume 8961, 89610W (2014) https://doi.org/10.1117/12.2039844

KEYWORDS: Ytterbium, Amplifiers, Oscillators, Fiber Bragg gratings, Fiber amplifiers, Absorption, Fiber lasers, Ions, Continuous wave operation, High power fiber lasers

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Proceedings Article | 12 March 2014 Paper

Paper

High gain ytterbium doped Ge pedestal large pitch fiber

Christian Gaida, Fabian Stutzki, Florian Jansen, Hans-Jürgen Otto, Tino Eidam, Cesar Jauregui, Jens Limpert, Andreas Tünnermann

Proceedings Volume 8961, 89611K (2014) https://doi.org/10.1117/12.2039804

KEYWORDS: Ytterbium, Doping, Germanium, Cladding, Fiber lasers, Laser systems engineering, Structured optical fibers, Absorption, Silica, Fiber amplifiers

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Proceedings Article | 12 March 2014 Paper

Paper

Passive mitigation of mode instabilities

C. Jauregui, H.-J. Otto, F. Stutzki, F. Jansen, J. Limpert, A. Tünnermann

Proceedings Volume 8961, 896128 (2014) https://doi.org/10.1117/12.2036716

KEYWORDS: Absorption, Laser systems engineering, Fiber lasers, Waveguides, Photonics, Fiber characterization, Laser damage threshold, Physics, Process modeling, Signal processing

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Proceedings Article | 22 March 2013 Paper

Paper

Mode instabilities: physical origin and mitigation strategies

Cesar Jauregui, Hans-Jürgen Otto, Florian Jansen, Fabian Stutzki, Tino Eidam, Jens Limpert, Andreas Tünnermann

Proceedings Volume 8601, 86010F (2013) https://doi.org/10.1117/12.2004381

KEYWORDS: Waveguides, Fiber lasers, Fermium, Frequency modulation, Laser systems engineering, Phase shifts, Energy transfer, Photonics, Absorption, Solids

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Proceedings Article | 22 March 2013 Paper

Paper

Mitigation of mode instabilities by dynamic excitation of fiber modes

Hans-Jürgen Otto, Cesar Jauregui, Fabian Stutzki, Florian Jansen, Jens Limpert, Andreas Tünnermann

Proceedings Volume 8601, 86010A (2013) https://doi.org/10.1117/12.2003837

KEYWORDS: Amplifiers, Fermium, Frequency modulation, Fiber amplifiers, Acousto-optics, Photodiodes, Diagnostics, Fiber lasers, Laser systems engineering, Logic

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Proceedings Article | 22 March 2013 Paper

Paper

58 mJ burst containing ultra-short pulses with homogenous energy level from an Yb-doped fiber amplifier

Sven Breitkopf, Arno Klenke, Thomas Gottschall, Hans-Jürgen Otto, Cesar Jauregui, Jens Limpert, Andreas Tünnermann

Proceedings Volume 8601, 860103 (2013) https://doi.org/10.1117/12.2002485

KEYWORDS: Amplifiers, Bragg cells, Fiber amplifiers, Pulsed laser operation, Laser systems engineering, Fiber lasers, Laser applications, Electron beams, High speed cameras, Continuous wave operation

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Proceedings Article | 16 February 2012 Paper

Paper

On the thermal origin of mode instabilities in high power fiber lasers

Cesar Jauregui, Tino Eidam, Hans-Jürgen Otto, Fabian Stutzki, Florian Jansen, Jens Limpert, Andreas Tünnermann

Proceedings Volume 8237, 82370D (2012) https://doi.org/10.1117/12.908279

KEYWORDS: Energy transfer, Ions, Phase shifts, High power fiber lasers, Fiber amplifiers, Thermal optics, Optical simulations, Fiber lasers, Temperature metrology, Photonics

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Showing 5 of 17 publications

Conference Committee Involvement (1)

Fiber Lasers XI: Technology, Systems, and Applications

3 February 2014 | San Francisco, California, United States

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