High-power continuous-wave midinfrared type-II "W" diode lasers

被引：40
|
作者：
Canedy, CL [1 ]
Bewley, WW [1 ]
Lindle, JR [1 ]
Vurgaftman, I [1 ]
Kim, CS [1 ]
Kim, M [1 ]
Meyer, JR [1 ]
机构：
[1] USN, Res Lab, Washington, DC 20375 USA
来源：
APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 21期
关键词：
D O I：
10.1063/1.1938256
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A type-II "W" diode laser with five quantum well periods and emitting at lambda approximate to 3.5 mu m operated in cw mode to T=218 K. A second device produced more than 500 mW of cw power at 80 K. The threshold current density at T=78 K was 31 A/cm(2), and pulsed operation was observed to 317 K. Improvements over previous single-stage devices for this wavelength range may be attributed in part to high growth quality and also to the incorporation of transition regions that smooth discontinuities in the conduction-band profile.
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页码：1 / 3
页数：3
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