Watt-class, semi-polar oriented, violet, edge-emitting laser diodes

Thiago Melo; Dennis M. Van Den Broeck; Phillip Skahan; Sang Ho Oh; Curt Dvonch; Qiyuan Wei; Alexander Sztein; Melvin McLaurin; James Raring

doi:10.1117/12.2612994

5 March 2022 Watt-class, semi-polar oriented, violet, edge-emitting laser diodes

Thiago Melo, Dennis M. Van Den Broeck, Phillip Skahan, Sang Ho Oh, Curt Dvonch, Qiyuan Wei, Alexander Sztein, Melvin McLaurin, James Raring

Author Affiliations +

Proceedings Volume PC12001, Gallium Nitride Materials and Devices XVII; PC120010O (2022) https://doi.org/10.1117/12.2612994
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

We report on state-of-the-art performance in violet, multi-mode, edge-emitting laser diodes fabricated on semi-polar oriented GaN substrates. Using these novel crystal orientations, we demonstrate high-power and high-efficiency continuous-wave laser operation. We report on violet laser diodes achieving continuous-wave output powers with peak wall-plug-efficiencies above 40% and optical output powers above 5 W at wavelengths between ~405 and ~415 nm. To the best of the author's knowledge, these wall-plug-efficiencies represents the highest reported to date for a multi-mode GaN diode laser emitting in the range of 400-410 nm. These InGaN-based laser-diodes will offer dramatic improvements in performance, size, weight, and cost of conventional solid-state and gas-based violet laser sources for use in defense, medical, and materials processing applications.

Conference Presentation

Citation Download Citation

Thiago Melo, Dennis M. Van Den Broeck, Phillip Skahan, Sang Ho Oh, Curt Dvonch, Qiyuan Wei, Alexander Sztein, Melvin McLaurin, and James Raring "Watt-class, semi-polar oriented, violet, edge-emitting laser diodes", Proc. SPIE PC12001, Gallium Nitride Materials and Devices XVII, PC120010O (5 March 2022); https://doi.org/10.1117/12.2612994

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