Mid-Infrared Quantum Cascade Laser Integrated With Lambda/4-Thick Distributed Bragg Reflector (Dbr)

Hiroyuki Yoshinaga,Jun-ichi Hashimoto,Hiroki Mori,Yukihiro Tsuji,Manabu Shiozaki,Makoto Murata,Mitsuru Ekawa,Yasuhiro Iguchi,Tsukuru Katsuyama

2016 INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (ISLC)（2016）

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摘要

We report a first successful operation of a distributed Bragg reflector (DBR) integrated InP-based QCL. The DBR facet (lambda/4-thick semiconductor-wall and lambda/4-thick air-gap, 2 pairs) shows a high reflectivity of 91%, leading to a significant threshold current reduction of QCL in 7 mu m wavelength region.

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关键词

quantum cascade laser, mid-infrared, distributed Bragg reflector

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