Transverse-mode control in GaN-based laser diodes

Hiroshi Amano; Satoshi Kamiyama; T. Detchprohm; Toshiyuki Sato; Motoaki Iwaya; Shugo Nitta; Shinji Terao; Isamu Akasaki

doi:10.1117/12.432610

9 July 2001 Transverse-mode control in GaN-based laser diodes

Hiroshi Amano, Satoshi Kamiyama, T. Detchprohm, Toshiyuki Sato, Motoaki Iwaya, Shugo Nitta, Shinji Terao, Isamu Akasaki

Proceedings Volume 4283, Physics and Simulation of Optoelectronic Devices IX; (2001) https://doi.org/10.1117/12.432610
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

Abstract

Transverse mode in GaN-based violet laser diodes for both vertical and horizontal directions was investigated. In order to achieve stable fundamental mode operation in vertical direction, thick AlGaN contact layer is found to be effective. For the stabilization of a transverse-mode in horizontal direction of the conventional ridge-waveguide structure, it is necessary to precisely control the remaining thickness of p-AlGaN cladding layer. In comparison, inner stripe structure using AlGaN current blocking layer has wide feasibility of the device parameter, excellent stability of large optical confinement, and small aspect ratio of beam divergence, under the condition of the precise control of the AlN molar fraction in AlGaN current blocking layer.

Citation Download Citation

Hiroshi Amano, Satoshi Kamiyama, T. Detchprohm, Toshiyuki Sato, Motoaki Iwaya, Shugo Nitta, Shinji Terao, and Isamu Akasaki "Transverse-mode control in GaN-based laser diodes", Proc. SPIE 4283, Physics and Simulation of Optoelectronic Devices IX, (9 July 2001); https://doi.org/10.1117/12.432610

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