Mid-infrared distributed-feedback interband cascade lasers with continuous-wave single-mode emission to 80°C

被引：44
|
作者：
Kim, C. S. [1 ]
Kim, M. [2 ]
Abell, J. [1 ]
Bewley, W. W. [1 ]
Merritt, C. D. [1 ]
Canedy, C. L. [1 ]
Vurgaftman, I. [1 ]
Meyer, J. R. [1 ]
机构：
[1] USN, Res Lab, Washington, DC 20375 USA
[2] Sotera Def Solut Inc, Crofton, MD 21114 USA
来源：
APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 06期
关键词：
HIGH-POWER;
D O I：
10.1063/1.4744445
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report continuous-wave (cw) distributed-feedback interband cascade lasers operating in a single spectral mode (lambda=3.7-3.8 mu m) at temperatures between 20 and 80 degrees C. The first-order gratings were realized by patterning high-index germanium layers on top of narrow ridges with relatively thin top claddings. One device generated over 27 mW of cw single-mode output at 40 degrees C, with a side-mode-suppression ratio >30 dB, while at 80 degrees C it still emitted >1 mW. At 20 degrees C, a second device lased in a single spectral mode with <100 mW of drive power. The tuning range was 21.5 nm with temperature and 10 nm with current. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4744445]
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页数：3
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