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

页码：1039 / 1042

页数：4

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