Transverse Bragg Resonance Waveguide Quantum Cascade Lasers

被引：0
|
作者：
Jia, Xuefeng [1 ,2 ,3 ]
Wang, Lijun [1 ,2 ,3 ]
Zhuo, Ning [1 ,2 ]
Zhang, Jinchuan [1 ,2 ]
Zhai, Shenqiang [1 ,2 ]
Liu, Junqi [1 ,2 ,3 ]
Liu, Shuman [1 ,2 ,3 ]
Liu, Fengqi [1 ,2 ,3 ]
Wang, Zhanguo [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, 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：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2018年 / 18卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Transverse Bragg Resonance; Single Longitudinal Mode; Beam Quality;
D O I：
10.1166/jnn.2018.16052
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A transverse Bragg resonance (TBR) waveguide was applied in the broad area quantum cascade lasers (QCLs). The transverse Bragg grating with phase shift (defect) in the middle was realized by standard optical lithography. Transfer matrix method was used to analyze the modal gain. Spectral and far-field properties were compared for QCLs with different TBR grating periods. Combined the second-order grating with the TBR grating, single longitudinal emission at 6.9 mu m with good beam quality was achieved for broad area QCL with ridge width of 150 mu m. The simple and low-cost fabrication process for realizing single longitudinal mode emission with good beam quality in broad area QCL is significant for future applications.
引用
收藏
页码：7600 / 7603
页数：4
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