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

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, mo...

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Bibliographic Details
Published in:中国物理快报：英文版 2016, Vol.33 (12), p.50-53
Main Author: 赵越 张锦川 贾志伟 刘颖慧 卓宁 翟慎强 刘峰奇 王占国
Format: Article
Language:English
Subjects:
低功耗
分布反馈
操作
波模
电力消耗
运行报告
连续运转
量子级联激光器
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Summary: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.
ISSN:0256-307X
1741-3540