Mr. Oliver Fitzau Profile

Oliver Fitzau

at Fraunhofer Institut fur Lasertechnik

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 12 July 2023 Open Access

Open Access

Paper

European laser development for LISA

Katrin Dahl, Andreas Baatzsch, Frederik Baron, Patricia Betz, Christian Dahl, Sven Dittmar, Mark Herding, Joachim Krieger, Timo Liebherr, Hanjo Schäfer, Laura Schäfer, Pavel Serenok, Janosch Kownatzki, Heiko Schillinger, Pelin Cebeci, Oliver Fitzau, Martin Giesberts, Martin Gohlke, Jose Sanjuan

Proceedings Volume 12777, 127773A (2023) https://doi.org/10.1117/12.2690347

KEYWORDS: Nanoimprint lithography, Relative intensity noise, Interfaces, Vacuum, Optical switching, Lasers, LabVIEW, Astronomical imaging, Accelerated life testing, Laser stabilization

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Proceedings Article | 4 March 2020 Paper

Paper

Highly stable, high power hybrid fiber and Innoslab amplifier for narrow linewidth signals

P. Cebeci, J. Mosquera, M. Höfer, O. Fitzau, M. Giesberts, B. Erben, H.-D. Hoffmann

Proceedings Volume 11259, 112590L (2020) https://doi.org/10.1117/12.2545934

KEYWORDS: Fiber amplifiers, Optical amplifiers, High power fiber amplifiers, Amplifiers, Resonators, Fiber lasers

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Proceedings Article | 21 February 2020 Paper

Paper

Fiber Bragg gratings in active multimode XLMA fibers for high-power kW-class fiber lasers

S. Klein, M. Giesberts, P. Baer, M. Raguse, O. Fitzau, M. Traub, H.-D. Hoffmann, V. Krause, G. Rehmann

Proceedings Volume 11260, 1126025 (2020) https://doi.org/10.1117/12.2545738

KEYWORDS: Fiber Bragg gratings, Fiber lasers, Multimode fibers, Resonators, Mirrors, Temperature metrology, Reflectivity, Refractive index, Laser stabilization, Cameras

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Proceedings Article | 12 July 2019 Open Access

Open Access

Paper

A new laser technology for LISA

Katrin Dahl, Pelin Cebeci, Oliver Fitzau, Martin Giesberts, Christian Greve, Markus Krutzik, Achim Peters, Sana Amairi Pyka, Jose Sanjuan, Max Schiemangk, Thilo Schuldt, Kai Voss, Andreas Wicht

Proceedings Volume 11180, 111800C (2019) https://doi.org/10.1117/12.2535931

KEYWORDS: Fiber amplifiers, Nanoimprint lithography, Semiconductor lasers, Fiber lasers, Diodes, Laser applications, Optical amplifiers, Optical benches, Laser stabilization, Phase modulation

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Proceedings Article | 7 March 2019 Paper

Paper

Improvement of the manufacturing process chain of sintered active XLMA fibers and their preforms for use in high power, high efficiency fiber resonators

A. Langner, F. Moser, J. Plass, D. Schönfeld, G. Schötz, T. Brabant, G. Kuka, M. Giesberts, P. Baer, S. Klein, O. Fitzau, H.-D. Hoffmann, G. Rehmann, V. Krause

Proceedings Volume 10897, 108970F (2019) https://doi.org/10.1117/12.2508597

KEYWORDS: Optical fibers, Fiber lasers, Scattering, Luminescence, Light scattering, Manufacturing, Refractive index, Silica, Cladding, Ytterbium, Rare earth doped glasses, Silicate glass

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Proceedings Article | 7 March 2019 Paper

Paper

Highly stable fiber lasers for satellite-based gravitational measurements

O. Fitzau, P. Betz, P. Cebeci, M. Giesberts, H.-D. Hoffmann, M. Schiemangk, A. Wicht, J. Sanjuan, K. Dahl, S. Amairi Pyka, E. Kovalchuk, A. Peters

Proceedings Volume 10897, 108972H (2019) https://doi.org/10.1117/12.2509950

KEYWORDS: Fiber amplifiers, Optical amplifiers, Fiber lasers, Laser stabilization, Amplifiers, Semiconductor optical amplifiers, Optical isolators, Diodes

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Proceedings Article | 7 March 2019 Paper

Paper

Investigation of fiber Bragg gratings for high-power multi-mode XLMA-based fiber lasers

S. Klein, O. Fitzau, M. Giesberts, M. Traub, H.-D. Hoffmann, V. Krause, G. Rehmann

Proceedings Volume 10897, 1089713 (2019) https://doi.org/10.1117/12.2508385

KEYWORDS: Fiber Bragg gratings, Reflectivity, Fiber lasers, Mirrors, Resonators, Laser stabilization, Multimode fibers, Ultrafast phenomena, Phase modulation, Refractive index

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Proceedings Article | 26 February 2018 Paper

Paper

Fully integrated Q-switch for commercial high-power resonator with solitary XLMA-fiber

R. Lange, C. Bachert, G. Rehmann, H. Weber, R. Luxen, H. Enns, M. Schenk, S. Hosdorf, S. Marfels, M. Bay, A. Kösters, V. Krause, M. Giesberts, O. Fitzau, H.-D. Hoffmann

Proceedings Volume 10512, 1051217 (2018) https://doi.org/10.1117/12.2288309

KEYWORDS: Q switching, Resonators, Laser applications, Fiber lasers, Pulsed laser operation, Laser processing, Q switched lasers, Laser sources, Laser resonators, Semiconductor lasers

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Proceedings Article | 26 February 2018 Paper

Paper

Directly q-switched high power resonator based on XLMA-fibers

M. Giesberts, O. Fitzau, H.-D. Hoffmann, R. Lange, C. Bachert, V. Krause

Proceedings Volume 10512, 1051218 (2018) https://doi.org/10.1117/12.2287783

KEYWORDS: Resonators, Optical fibers, Q switching, Fiber lasers, Q switches, Q switched lasers, Oscillators, Modulators, Multimode fibers, Electrooptic modulators, High power fiber lasers, Q switched fiber lasers, Pulsed fiber lasers

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Proceedings Article | 17 November 2017 Open Access

Open Access

Paper

High stability laser for next generation gravity missions

K. Nicklaus, M. Herding, X. Wang, N. Beller, O. Fitzau, M. Giesberts, M. Herper, G. Barwood, R. Williams, P. Gill, H. Koegel, S. Webster, M. Gohlke

Proceedings Volume 10563, 105632T (2017) https://doi.org/10.1117/12.2304161

KEYWORDS: RGB color model, Laser stabilization, Fiber amplifiers, Oscillators, Diodes, Astronomical imaging, Computer aided design, Temperature metrology, Electronics, Environmental sensing

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Proceedings Article | 25 September 2017 Open Access

Open Access

Paper

High stability laser for interferometric earth gravity measurements

K. Dahl, K. Nicklaus, M. Herding, X. Wang, N. Beller, O. Fitzau, M. Giesberts, M. Herper, R. Williams, G. Barwood, P. Lovelock, P. Gill, H. Koegel, A. Sell

Proceedings Volume 10562, 105620J (2017) https://doi.org/10.1117/12.2296095

KEYWORDS: Fiber amplifiers, Laser stabilization, Interferometry, Diodes, Polarization, Temperature metrology, Oscillators, Optical amplifiers, Optical resonators, Electronics

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Proceedings Article | 22 April 2016 Paper

Paper

Key optical components for spaceborne lasers

J. Löhring, M. Winzen, H. Faidel, J. Miesner, D. Plum, J. Klein, O. Fitzau, M. Giesberts, W. Brandenburg, A. Seidel, N. Schwanen, D. Riesters, S. Hengesbach, H.-D. Hoffmann

Proceedings Volume 9730, 97300O (2016) https://doi.org/10.1117/12.2212319

KEYWORDS: Mirrors, Wave plates, Laser systems engineering, LIDAR, Optical isolators, Laser development, Crystals, Optical components, Laser crystals, Temperature metrology

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Proceedings Article | 4 March 2015 Paper

Paper

High stability single-frequency Yb fiber amplifier for next generation gravity missions

M. Herper, Oliver Fitzau, M. Giesberts, K. Nicklaus, G. Barwood, R. Williams, P. Gill, H. Koegel, H.-D. Hoffmann

Proceedings Volume 9344, 93440B (2015) https://doi.org/10.1117/12.2077400

KEYWORDS: Fiber amplifiers, Diodes, Laser stabilization, Amplifiers, Satellites, Fiber lasers, Absorption, Ytterbium, Laser applications, Polarization

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Proceedings Article | 18 November 2013 Paper

Paper

Laser processed preforms for microstructured optical fibers

Martin Becker, Marcel Werner, Oliver Fitzau, Dominik Esser, Jens Kobelke, Kay Schuster, Adrian Lorenz, Anka Schwuchow, Manfred Rothhardt, Dieter Hoffmann, Hartmut Bartelt

Proceedings Volume 8785, 8785C9 (2013) https://doi.org/10.1117/12.2023223

KEYWORDS: Laser drilling, Structured optical fibers, Fiber lasers, Fiber Bragg gratings, Micro optical fluidics, Laser applications, Glasses, Silica, Absorption, Signal attenuation

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Proceedings Article | 19 February 2009 Paper

Paper

Experimental and theoretical studies on kW class polarized fiber lasers for cw operation

Oliver Fitzau, Jens Geiger, Hans-Dieter Hoffmann

Proceedings Volume 7195, 719509 (2009) https://doi.org/10.1117/12.812112

KEYWORDS: Polarization, Fiber lasers, Polarizers, Resonators, Polarimetry, Mirrors, Signal attenuation, Cladding, Continuous wave operation, Polarization maintaining fibers

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Showing 5 of 15 publications

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