High-performance quantum cascade lasers (λ∼11 μm) operating at high temperature (T≥425 K)

被引：40

作者：

Tahraoui, A ^{[1
]}

Matlis, A ^{[1
]}

Slivken, S ^{[1
]}

Diaz, J ^{[1
]}

Razeghi, M ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 04期

关键词：

D O I：

10.1063/1.1343848

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report record-low threshold current density and high output power for lambda similar to 11 mum Al0.48In0.52As/Ga0.47In0.53As quantum cascade lasers operating up to 425 K. The threshold current density is 1.1, 3.83, and 7.08 kA/cm(2) at 80, 300, and 425 K, respectively, for 5 mus pulses at a 200 Hz repetition rate. The cavity length is 3 mm with a stripe width of 20 mum. The maximum peak output power per facet is 1 W at 80 K, 0.5 W at 300 K, and more than 75 mW at 425 K. The characteristic temperature of these lasers is 174 K between 80 and 300 K and 218 K in the range of 300-425 K. (C) 2001 American Institute of Physics.

引用

页码：416 / 418

页数：3

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