Dr. Heike C. P. Christopher Profile

Dr. Heike C. P. Christopher

at Ferdinand-Braun-Institut gGmbH

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Author

Publications (8)

Proceedings Article | 13 March 2024 Presentation

Passively mode-locked monolithic diode lasers with a tapered gain section generating picosecond pulses with 45 W peak power at 780 nm

S. Wohlfeil, H. Christopher, J. Fricke, P. Della Casa, A. Maaßdorf, H. Wenzel, A. Knigge

Proceedings Volume 12867, 128670T (2024) https://doi.org/10.1117/12.3002428

KEYWORDS: Mode locking, Semiconductor lasers, Picosecond phenomena, Ultrafast phenomena, Two photon polymerization, Terahertz spectroscopy, Waveguides, Tunable filters, Spectroscopy, Sapphire lasers

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Proceedings Article | 13 March 2024 Presentation

200 W pulse power from a distributed Bragg reflector broad area laser with multiple active regions for LiDAR applications

Heike Christopher, Nor Ammouri, Jörg Fricke, Arnim Ginolas, Armin Liero, Andre Maaßdorf, Hans Wenzel, Andrea Knigge

Proceedings Volume PC12905, PC1290504 (2024) https://doi.org/10.1117/12.3002385

KEYWORDS: Pulsed laser operation, LIDAR, Distributed Bragg reflectors, Semiconductor lasers, Laser applications, Waveguides, Quantum tunneling, Laser stabilization, Laser optics, Emission spectrum

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Proceedings Article | 12 March 2024 Presentation + Paper

High brightness nanosecond-pulse operation of 905 nm distributed Bragg reflector tapered-ridge-waveguide lasers with multiple active regions

Heike Christopher, Maximilian Beier, Jan-Philipp Koester, Jörg Fricke, Arnim Ginolas, Armin Liero, Andre Maaßdorf, Hans Wenzel, Andrea Knigge

Proceedings Volume 12867, 1286703 (2024) https://doi.org/10.1117/12.3002273

KEYWORDS: Waveguides, Semiconductor lasers, Pulsed laser operation, Near field, Design, Wave propagation, Laser beam propagation, LIDAR, Distributed Bragg reflectors, Waveguide lasers

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Proceedings Article | 15 March 2023 Presentation + Paper

Investigation of distributed Bragg reflectors tapered-ridge-waveguide lasers under nanosecond high pulse current excitation

H. Christopher, M. Beier, J. Fricke, J. Glaab, A. Liero, A. Maaßdorf, J.-P. Koester, H. Wenzel, A. Knigge

Proceedings Volume 12440, 124400I (2023) https://doi.org/10.1117/12.2649600

KEYWORDS: Waveguides, Pulsed laser operation, Semiconductor lasers, Near field, Near field optics, LIDAR, Distributed Bragg reflectors, Laser bars, Laser development, Laser bonding

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Proceedings Article | 14 March 2023 Presentation + Paper

2kW pulse power from internal wavelength stabilized diode laser bar for LiDAR applications

H. Christopher, N. Ammouri, A. Maaßdorf, J. Fricke, A. Ginolas, J. Glaab, A. Liero, C. Zink, M. Ekterai, H. Wenzel, A. Knigge

Proceedings Volume 12403, 1240302 (2023) https://doi.org/10.1117/12.2649630

KEYWORDS: Pulsed laser operation, Laser bars, Laser stabilization, Semiconductor lasers, LIDAR, Near field optics, Active optics, Near field, Blue lasers, Waveguides

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Proceedings Article | 24 April 2020 Paper

Wavelength stabilized high pulse power laser bars for line-flash automotive LIDAR

A. Knigge, H. Christopher, A. Liero, J. Fricke, A. Klehr, T. Honig, E. Langenbach, H. Wenzel, G. Tränkle

Proceedings Volume 11262, 112620F (2020) https://doi.org/10.1117/12.2544274

KEYWORDS: Pulsed laser operation, LIDAR, Semiconductor lasers, Laser sources, Beam shaping, Integrated optics, Near field optics, Laser development, Pulse generators, Collimation

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Proceedings Article | 9 March 2020 Presentation

Investigation of 48 emitter DBR laser bars under nanosecond high-peak current excitation (Conference Presentation)

Heike Christopher, Andreas Klehr, Jörg Fricke, Armin Liero, Hans Wenzel, Andrea Knigge, Günther Tränkle

Proceedings Volume 11301, 113010O (2020) https://doi.org/10.1117/12.2544165

KEYWORDS: Biomedical optics, Free space optics, LIDAR, Surgery, Laser development, Pulsed laser operation, Semiconductor lasers, Laser optics, Free space optical communications, Biology

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Proceedings Article | 17 November 2017 Open Access

Compact mode-locked diode laser system for high precision frequency comparisons in microgravity

H. Christopher, E. Kovalchuk, A. Wicht, G. Erbert, G. Tränkle, A. Peters

Proceedings Volume 10563, 105632U (2017) https://doi.org/10.1117/12.2304184

KEYWORDS: Mode locking, Semiconductor lasers, Laser systems engineering, Potassium, Rubidium, Phase measurement, Diodes, Picosecond phenomena, Astronomical imaging, Chemical species

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