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1 August 2021 GaN microlasers for integrated photonics: waveguide polariton lasers and microdisk lasers
Thierry Guillet
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Proceedings Volume 11801, UV and Higher Energy Photonics: From Materials to Applications 2021; 118010B (2021) https://doi.org/10.1117/12.2594565
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
The GaN photonic platform is of large interest for broadband integrated photonics applications, from near-UV to visible and near-IR. Here we present the latest developments in near-UV microlasers and their coupling to gratings and waveguides, based on GaN active layers. We demonstrate two iconic NUV microlasers: (i) a microdisk laser based on GaN/AlGaN quantum wells, coupled to a waveguide and an outcoupling grating; (ii) a ridge waveguide polariton laser operating with ultra-short Fabry-Perot ridge cavities (5-60µm), that is not governed by Bernard-Durrafourg condition (population inversion) as in standard ridge interband lasers. Both lasers operate around 380nm.
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Thierry Guillet "GaN microlasers for integrated photonics: waveguide polariton lasers and microdisk lasers", Proc. SPIE 11801, UV and Higher Energy Photonics: From Materials to Applications 2021, 118010B (1 August 2021); https://doi.org/10.1117/12.2594565
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KEYWORDS
Waveguides
Gallium nitride
Polaritons
Waveguide lasers
Integrated photonics
Fabry–Perot interferometers
Near ultraviolet
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