Second-harmonic generation in three-well and bound-to-continuum GaAs-based quantum-cascade lasers

被引：1

作者：

Pflugl, C. ^{[1
]}

Austerer, M. ^{[1
]}

Golka, S. ^{[1
]}

Schrenk, W. ^{[1
]}

Andrews, A. M. ^{[1
]}

Roch, T. ^{[1
]}

Strasser, G. ^{[1
]}

机构：

[1] Vienna Tech Univ, Zentrum Mikro & Nanostrukturen, A-1040 Vienna, Austria

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2006年 / 85卷 / 2-3期

关键词：

GaAs; Phase Match; Threshold Current Density; Intersubband Transition; Waveguide Design;

D O I：

10.1007/s00340-006-2302-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present efficient second-harmonic generation in state of the art GaAs-based quantum-cascade lasers with nonlinear output powers up to 100 mu W. The nonlinear output was significantly improved by applying an AlGaAs waveguide structure, which guides both, the fundamental and nonlinear light. We further show the influence of the doping in the active region on the nonlinear light generation by comparing two similar structures with different doping levels.

引用

页码：231 / 234

页数：4

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