Continuous wave operation of quantum cascade lasers based on vertical transitions at lambda=4.6 mu m

被引：29
|
作者：
Faist, J
Capasso, F
Sirtori, C
Sivco, DL
Hutchinson, AL
Chu, SNG
Cho, AY
机构：
[1] Bell Laboratories, Lucent Technologies, Murray Hill
来源：
SUPERLATTICES AND MICROSTRUCTURES | 1996年 / 19卷 / 04期
关键词：
D O I：
10.1006/spmi.1996.0037
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Continuous wave operation of a quantum cascade laser at lambda=4.6 mu m is reported above liquid nitrogen temperature. Optical powers of 15 mW at 50 K and 2 mW at 85 K are reported. The single mode spectrum is temperature tunable over 1.8 cm(-1). A linewidth of 115 Mhz is measured with a Fabry-Perot on those free running devices. Gain measurements show evidence for ultra low linewidth enhancement factor alpha<0.1. These devices also operated in pulse mode with 20 mW peak power at 200 K. (C) 1996 Academic Press Limited
引用
收藏
页码：337 / 345
页数：9
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