Low Power Consumption Distributed-Feedback Quantum Cascade Lasers Operating in Continuous-Wave Mode above 90°C at λ ∼ 7.2 μm

被引：5

作者：

Zhao, Yue

Zhang, Jin-Chuan ^{[1
]}

Jia, Zhi-Wei

Liu, Ying-Hui

Zhuo, Ning

Zhai, Shen-Qiang

Liu, Feng-Qi ^{[1
]}

Wang, Zhan-Guo

机构：

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

来源：

CHINESE PHYSICS LETTERS | 2016年 / 33卷 / 12期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

DISSIPATION;

D O I：

10.1088/0256-307X/33/12/124201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the design and fabrication of lambda similar to 7.2 mu m distributed feedback quantum cascade lasers for very high temperature cw operation and low electrical power consumption. The cw operation is reported above 90 degrees C. For a 2-mm-long and 10-mu m-wide laser coated with high-reflectivity on the rear facet, more than 170 mW of output power is obtained at 20 degrees C with a threshold power consumption of 2.4 W, corresponding to 30 mW with a threshold power consumption of 3.9W at 90 degrees C. Robust single-mode emission with a side-mode suppression ratio above 25 dB is continuously tunable by the heat sink temperature or injection current.

引用

页数：4