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

作　　者：赵越 张锦川 贾志伟 刘颖慧 卓宁 翟慎强 刘峰奇 王占国 

机构地区：[1]Key Lab of Semiconductor Materials Science,Institute of Semiconductors,Chinese Academy of Sciences [2]Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices

出　　处：《Chinese Physics Letters》2016年第12期50-53,共4页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant No 2013CB632801;the National Key Research and Development Program under Grant No 2016YFB0402303;the National Natural Science Foundation of China under Grant Nos61435014,61627822,61574136 and 61306058;the Key Projects of Chinese Academy of Sciences under Grant No ZDRW-XH-2016-4;the Beijing Natural Science Foundation under Grant No 4162060

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

关 键 词：QCL DFB on of Low Power Consumption Distributed-Feedback Quantum Cascade Lasers Operating in Continuous-Wave Mode above 90 at in 

分 类 号：TN248[电子电信—物理电子学] TN248.4