High-power continuous-wave interband cascade lasers with 10 active stages

被引：43

作者：

Kim, Mijin ^{[1
]}

Bewley, William W. ^{[2
]}

Canedy, Chadwick L. ^{[2
]}

Kim, Chul Soo ^{[2
]}

Merritt, Charles D. ^{[2
]}

Abell, Joshua ^{[2
]}

Vurgaftman, Igor ^{[2
]}

Meyer, Jerry R. ^{[2
]}

机构：

[1] Sotera Def Solut Inc, Columbia, MD 21046 USA

[2] Naval Res Lab, Washington, DC 20375 USA

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 08期

关键词：

Continuous wave lasers - Pulsed lasers;

D O I：

10.1364/OE.23.009664

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the pulsed and continuous wave (cw) performance of 10-stage interband cascade lasers (ICLs) emitting at both lambda approximate to 3.2 mu m and lambda approximate to 3.45 mu m. The slope efficiency is higher while the external differential quantum efficiency per stage remains about the same when comparison is made to earlier results for 7-stage ICLs with similar carrier-rebalanced designs. At T = 25 degrees C, an 18-mu m-wide ridge with 4.5 mm cavity length and high-reflection/anti-reflection coatings emits up to 464 mW of cw output power with beam quality factor M-2 = 1.9, for higher brightness than has ever been reported previously for an ICL. When the cavity length is reduced to 1 mm, both the 10-stage and 7-stage devices reach 18% cw wallplug efficiency at T = 25 degrees C. (C) 2015 Optical Society of America

引用

收藏

页码：9664 / 9672

页数：9

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