Stable single-mode operation of a distributed feedback quantum cascade laser integrated with a distributed Bragg reflector

被引：3
|
作者：
Cheng, Feng-Min [1 ,2 ,3 ]
Jia, Zhi-Wei [1 ,2 ,3 ]
Zhang, Jin-Chuan [1 ,2 ,3 ]
Zhuo, Ning [1 ,2 ,3 ]
Zhai, Shen-Qiang [1 ,2 ,3 ]
Wang, Li-Jun [1 ,2 ,3 ]
Liu, Jun-Qi [1 ,2 ,3 ]
Liu, Shu-Man [1 ,2 ,3 ]
Liu, Feng-Qi [1 ,2 ,3 ]
Wang, Zhan-Guo [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing, Peoples R China
[2] Beijing Key Lab Low Dimens Semicond Mat & Devices, Beijing 100083, Peoples R China
[3] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 101408, Peoples R China
来源：
PHOTONICS RESEARCH | 2017年 / 5卷 / 04期
基金：
中国国家自然科学基金;
关键词：
ROOM-TEMPERATURE; CONTINUOUS-WAVE; DFB;
D O I：
10.1364/PRJ.5.000320
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report an index-coupled distributed feedback quantum cascade laser by employing an equivalent phase shift (EPS) of quarter-wave integrated with a distributed Bragg reflector (DBR) at lambda similar to 5.03 mu m. The EPS is fabricated through extending one sampling period by 50% in the center of a sampled Bragg grating. The key EPS and DBR pattern are fabricated by conventional holographic exposure combined with the optical photolithography technology, which leads to improved flexibility, repeatability, and cost-effectiveness. Stable single-mode emission can be obtained by changing the injection current or heat sink temperature even under the condition of large driving pulse width. (C) 2017 Chinese Laser Press
引用
收藏
页码：320 / 323
页数：4
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