High-brightness architectures for quantum cascade lasers

Matthew M. Suttinger; Chi Yang; Sanh Luong; Rowel Go; Chunte Lu; Ron Kaspi

doi:10.1117/12.2616049

5 March 2022 High-brightness architectures for quantum cascade lasers

Matthew M. Suttinger, Chi Yang, Sanh Luong, Rowel Go, Chunte Lu, Ron Kaspi

Proceedings Volume PC12009, Quantum Sensing and Nano Electronics and Photonics XVIII; PC120090I (2022) https://doi.org/10.1117/12.2616049
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

An “ultra-wide” stripe Fabry-Perot cavity is designed with losses distributed to selectively scatter high order modes. We show that optimizing ultra-wide QCL devices for quasi-continuous wave operation can enable a high brightness continuous wave beam that is multiplexed and then polarization beam combined. We also expand on the use of angled cavity waveguides that are overlapped as a means to provide multiple coherent emitters on a laser bar. We introduce the strategically etched notches in angled cavity architectures to provide a large area for gain while reinforcing fundamental mode-like behavior.

Conference Presentation

Citation Download Citation

Matthew M. Suttinger, Chi Yang, Sanh Luong, Rowel Go, Chunte Lu, and Ron Kaspi "High-brightness architectures for quantum cascade lasers", Proc. SPIE PC12009, Quantum Sensing and Nano Electronics and Photonics XVIII, PC120090I (5 March 2022); https://doi.org/10.1117/12.2616049

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