Room temperature continuous-wave operation of a dual-wavelength quantum cascade laser

被引：0
|
作者：
Guan, Yanjiao [1 ,2 ]
Sun, Ruixuan [1 ,2 ]
Zhuo, Ning [1 ]
Lu, Xiyu [1 ,2 ]
Zhang, Jinchuan [1 ]
Zhai, Shenqiang [1 ]
Liu, Junqi [1 ,2 ]
Liu, Shuman [1 ,2 ]
Wang, Lijun [1 ,2 ]
Liu, Fengqi [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Beijing Key Lab Low Dimens Semicond Mat & Devices, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2023年 / 21卷 / 01期
基金：
中国国家自然科学基金;
关键词：
quantum cascade laser; dual-wavelength; mid-infrared; RECENT PROGRESS;
D O I：
10.3788/COL202321.011408
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the design and fabrication of a dual-wavelength switchable quantum cascade laser (QCL) by optimizing the design of a homogeneous active region and combining superposed distributed feedback gratings. Coaxial, single-mode emissions at two different wavelengths were achieved only through adjusting the bias voltage. Room temperature continuous-wave operation with output powers of above 30 mW and 75 mW was realized for single-mode emission at 7.61 mu m and 7.06 mu m, respectively. The simplified fabrication process and easy wavelength control of our designed dual-wavelength QCL make it very attractive for developing miniature multi-species gas sensing systems.
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页数：5
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