Carrier confinement in strain-compensated InGaAs/GaAsP quantum well laser with temperature-insensitive threshold

Wataru Susaki; Hiroyuki Yaku; Toshiro Hayakawa; Toshiaki Fukunaga; Hideki Asano

doi:10.1117/12.429799

6 June 2001 Carrier confinement in strain-compensated InGaAs/GaAsP quantum well laser with temperature-insensitive threshold

Wataru Susaki, Hiroyuki Yaku, Toshiro Hayakawa, Toshiaki Fukunaga, Hideki Asano

Author Affiliations +

Proceedings Volume 4287, In-Plane Semiconductor Lasers V; (2001) https://doi.org/10.1117/12.429799
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

Abstract

Temperature insensitive threshold current in strain- compensated-(In_xGa_1-xAs/GaAsP) SQW-lasers with x X 0.3 is investigated by changing x equals 0.2, 0.25 and 0.3 by the spectral measurement and the threshold carrier density determined by lasing delay. Large energy separation between the heavy and the light hole subbands due to the highly compressive strain makes it not to exist the light hole subbands in the quantum well, which is confirmed by the induced Raman scattering spectral above threshold. Injected holds are almost contained in the heavy hole subbands, and injected electrons are also contained in the electron subbands at threshold in these lasers at room temperature.

Citation Download Citation

Wataru Susaki, Hiroyuki Yaku, Toshiro Hayakawa, Toshiaki Fukunaga, and Hideki Asano "Carrier confinement in strain-compensated InGaAs/GaAsP quantum well laser with temperature-insensitive threshold", Proc. SPIE 4287, In-Plane Semiconductor Lasers V, (6 June 2001); https://doi.org/10.1117/12.429799

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