Wallplug efficiency of quantum cascade lasers: Critical parameters and fundamental limits

被引：126

作者：

Faist, Jerome

机构：

[1] Institute of Physics, University of Neuchâtel, CH-2000 Neuchâtel

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 25期

关键词：

D O I：

10.1063/1.2747190

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Fundamental limits in the wallplug efficiency of quantum cascade lasers are derived in a rate equation model that uses global effective parameters. Free carrier absorption and thermal population of the lower state force a strong downward trend of this efficiency with increasing wavelength, that agrees well with experimental data taken from literature. (c) 2007 American Institute of Physics.

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页数：3

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