Tunable Distributed Feedback Quantum Cascade Lasers by a Sampled Bragg Grating

被引：10
|
作者：
Zhuo, Ning [1 ,2 ]
Zhang, Jinchuan [1 ,2 ]
Liu, Fengqi [1 ,2 ]
Wang, Lijun [1 ,2 ]
Tan, Song [1 ,2 ]
Yan, Fangliang [1 ,2 ]
Liu, Junqi [1 ,2 ]
Wang, Zhanguo [1 ,2 ]
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
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2013年 / 25卷 / 11期
关键词：
Quantum cascade lasers; sampled Bragg grating; semiconductor lasers; PERFORMANCE;
D O I：
10.1109/LPT.2013.2257716
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel complex-coupled distributed feedback quantum cascade laser emitting around lambda similar to 4.7 mu m is demonstrated by a sampled Bragg grating (SBG). The key superiorities are to utilize the +1st-order (positive first order) transmission of the SBG for laser single-mode operation, and use conventional holographic exposure combined with the optical photolithography technology to fabricate the sampled grating, which lead to improved flexibility, repeatability, and cost-effectiveness. Selective single-mode lasing with a mean side mode suppression ratio above 20 dB and wavelength coverage range of 87 nm is achieved by changing the sampling period.
引用
收藏
页码：1039 / 1042
页数：4
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