Optical gain, loss, and transparency current in high performance mid-infrared interband cascade lasers

被引：23

作者：

Soibel, Alex ^{[1
]}

Mansour, Kamjou ^{[1
]}

Qiu, Yueming ^{[1
]}

Hill, Cory J. ^{[1
]}

Yang, Rui Q. ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 09期

关键词：

D O I：

10.1063/1.2723188

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The net modal gain, optical loss, and transparency current of high-performance, narrow ridge waveguide interband cascade (IC) lasers have been measured using the Hakki-Paoli technique in the temperature range from T=78 to 270 K. In this temperature range, the optical loss of IC lasers increases from alpha(w)approximate to 17 cm(-1) at T=78 K to alpha(w)approximate to 35 at T=270 K, the transparency current density rises from I-tr=10 to 330 A/cm(2), and the differential gain decreases from g(d)approximate to 2.2 cm/A to g(d)approximate to 0.06 cm/A with a characteristic temperature of T-0=130 K. The implications of these observed characteristics for IC lasers are discussed. (C) 2007 American Institute of Physics.

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页数：4

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