Gain and loss in quantum cascade lasers

被引：6

作者：

Wacker, A ^{[1
]}

Lee, SC ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Theoret Phys, D-10623 Berlin, Germany

来源：

PHYSICA B-CONDENSED MATTER | 2002年 / 314卷 / 1-4期

关键词：

quantum cascade lasers; gain; quantum transport;

D O I：

10.1016/S0921-4526(01)01402-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report gain calculations for a quantum cascade laser using a fully self-consistent quantum mechanical approach based on the theory of nonequilibrium Green functions. Both the absolute value of the gain as well as the spectral position at threshold are in excellent agreement with experimental findings for T = 77 K. The gain strongly decreases with temperature. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：327 / 331

页数：5

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