Dr. Jan-Philipp Koester Profile

Dr. Jan-Philipp Koester

at Ferdinand-Braun-Institut gGmbH

SPIE Involvement:

Author

Area of Expertise:

Optoelectronics , Laser diodes , Integrated photonic circuits , Device simulation , Computational photonics

Websites:

Company Website

Publications (4)

Proceedings Article | 13 March 2024 Presentation + Paper

Comparison of Y-branch and multimode interference coupler-based dual-wavelength light sources around 785 nm

André Müller, Lara Sophie Theurer, Jan-Philipp Koester, Martin Maiwald, Jörg Fricke, Andrea Knigge, Bernd Sumpf

Proceedings Volume 12905, 129050D (2024) https://doi.org/10.1117/12.3000188

KEYWORDS: Emission wavelengths, Raman spectroscopy, Waveguides, Terahertz radiation, Spectroscopy, Distributed Bragg reflectors

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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 | 2 March 2020 Presentation + Paper

Traveling wave model-based analysis of tapered broad-area lasers

J.-P. Koester, M. Radziunas, A. Zeghuzi, H. Wenzel, A. Knigge

Proceedings Volume 11274, 112740I (2020) https://doi.org/10.1117/12.2537015

KEYWORDS: Broad area laser diodes, High power diode lasers, Device simulation, Electro optical modeling, Laser development, Waveguides, Resonators

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