Angled cavity broad area quantum cascade lasers

被引：29

作者：

Bai, Y. ^{[1
]}

Slivken, S. ^{[1
]}

Lu, Q. Y. ^{[1
]}

Bandyopadhyay, N. ^{[1
]}

Razeghi, M. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Elect Engn & Comp Sci, Ctr Quantum Devices, Evanston, IL 60208 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 08期

关键词：

POWER;

D O I：

10.1063/1.4747447

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Angled cavity broad area quantum cascade lasers (QCLs) are investigated with surface grating-based distributed feedback (DFB) mechanisms. It is found that an angled cavity incorporating a one dimensional DFB with grating lines parallel to the laser facet offers the simplest solution for single mode and diffraction limited emission in the facet normal direction. A room temperature single mode QCL with the highest output power for wavelengths longer than 10 mu m is demonstrated. This structure could be applied to a wide range of laser structures for power scaling along with spectral and spatial beam control. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4747447]

引用

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