2.4 W room temperature continuous wave operation of distributed feedback quantum cascade lasers

被引：106

作者：

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

Bai, Y. ^{[1
]}

Bandyopadhyay, N. ^{[1
]}

Slivken, S. ^{[1
]}

Razeghi, M. ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 18期

关键词：

MU-M; POWER;

D O I：

10.1063/1.3588412

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate high power continuous-wave room-temperature operation surface-grating distributed feedback quantum cascade lasers at 4.8 mu m. High power single mode operation benefits from a combination of high-reflection and antireflection coatings. Maximum single-facet continuous-wave output power of 2.4 W and peak wall plug efficiency of 10% from one facet is obtained at 298 K. Single mode operation with a side mode suppression ratio of 30 dB and single-lobed far field without beam steering is observed. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3588412]

引用

页数：3

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