Distributed feedback quantum cascade lasers operating in continuous-wave mode at lambda approximate to 7.6 mu m

被引：3

作者：

Zhang, Jinchuan ^{[1
,2
]}

Wang, Lijun ^{[1
]}

Liu, Wanfeng ^{[1
]}

Liu, Fengqi ^{[1
]}

Zhao, Lihua ^{[1
]}

Zhai, Shenqiang ^{[1
]}

Liu, Junqi ^{[1
]}

Wang, Zhanguo ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China

[2] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

来源：

JOURNAL OF SEMICONDUCTORS | 2012年 / 33卷 / 02期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

quantum cascade laser; distributed feedback; holographic lithography;

D O I：

10.1088/1674-4926/33/2/024005

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Distributed feedback (DFB) quantum cascade lasers (QCLs) in continuous-wave (CW) mode emitting at lambda approximate to 7.6 mu m are presented. Holographic lithography was used to fabricate the first-order distributed feedback grating. For a high-reflectivity-coated QCL with 14.5-mu m-wide and 3-mm-long cavity, CW output powers of 300 mW at 85 K and still 10 mW at 270 K are obtained. Single-mode emission with a side-mode suppression ratio (SMSR) of about 30 dB and a wide tuning range of similar to 300 nm in the temperature range from 85 to 280 K is observed.

引用

页数：3

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