Room-temperature, high-power, and continuous-wave operation of distributed-feedback quantum-cascade lasers at λ∼9.6 μm

被引：31

作者：

Darvish, S. R. ^{[1
]}

Slivken, S. ^{[1
]}

Evans, A. ^{[1
]}

Yu, J. S. ^{[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 | 2006年 / 88卷 / 20期

关键词：

D O I：

10.1063/1.2205730

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-power continuous-wave (cw) operation of distributed-feedback quantum-cascade lasers is reported. Continuous-wave output powers of 100 mW at 25 degrees C and 20 mW at 50 degrees C are obtained. The device exhibits a cw threshold current density of 1.34 kA/cm(2), a maximum cw wall-plug efficiency of 1% at 25 degrees C, and a characteristic temperature of similar to 190 K in pulsed mode. Single-mode emission near 9.6 mu m with a side-mode suppression ratio of >= 30 dB and a tuning range of 2.89 cm(-1) from 15 to 50 degrees C is obtained. (c) 2006 American Institute of Physics.

引用

页数：3

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