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]

引用

页数：3

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