Very high average power at room temperature from λ≈5.9-μm quantum-cascade lasers

被引：43

作者：

Yu, JS ^{[1
]}

Slivken, S ^{[1
]}

Evans, A ^{[1
]}

David, J ^{[1
]}

Razeghi, M ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 20期

关键词：

D O I：

10.1063/1.1574404

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a very high average output power at room temperature for quantum-cascade lasers emitting at lambdaapproximate to5.9 mum. For high-reflectivity-coated 2-mm-long cavities, a low threshold current density of 1.7 kA/cm(2) was obtained at room temperature. From 300 to 400 K, the characteristic temperature (T-0) was 198 K. A maximum average output power of 0.67 W was achieved. In addition, 0.56 W average output power was observed at a duty cycle of 56%. (C) 2003 American Institute of Physics.

引用

页码：3397 / 3399

页数：3

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