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

Heike C. P. Christopher; Nor Ammouri; Jörg Fricke; Arnim Ginolas; Armin Liero; Andre Maaßdorf; Hans Wenzel; Andrea C. Knigge

doi:10.1117/12.3002385

13 March 2024 200 W pulse power from a distributed Bragg reflector broad area laser with multiple active regions for LiDAR applications

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

Author Affiliations +

Proceedings Volume PC12905, Novel In-Plane Semiconductor Lasers XXIII; PC1290504 (2024) https://doi.org/10.1117/12.3002385
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We present broad area distributed Bragg reflector lasers with up to five active regions epitaxially stacked in a common waveguide emitting nanosecond pulses around 905nm for LIDAR. Optimized for pulsed operation and implementation of a surface Bragg grating, the diode laser emits in a higher order vertical mode. 2mm long diode lasers with five active regions and a 200µm wide current aperture integrated in an inhouse high pulse current electronic driver provide pulse powers >200W at slightly >100A in 10ns long pulses. The emission spectrum features a spectral bandwidth of <0.3nm and a temperature-related shift of <70pm/K.

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Heike C. P. Christopher, Nor Ammouri, Jörg Fricke, Arnim Ginolas, Armin Liero, Andre Maaßdorf, Hans Wenzel, and Andrea C. Knigge "200 W pulse power from a distributed Bragg reflector broad area laser with multiple active regions for LiDAR applications", Proc. SPIE PC12905, Novel In-Plane Semiconductor Lasers XXIII, PC1290504 (13 March 2024); https://doi.org/10.1117/12.3002385

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