Grating-tuned external-cavity quantum-cascade semiconductor lasers

被引：88

作者：

Luo, GP

Peng, C

Le, HQ ^{[1
]}

Pei, SS

Hwang, WY

Ishaug, B

Um, J

Baillargeon, JN

Lin, CH

机构：

[1] Univ Houston, Dept Elect & Comp Engn, Houston, TX 77204 USA

[2] Univ Houston, Space Vacuum Epitaxy Ctr, Houston, TX 77204 USA

[3] Appl Optoelect Inc, Sugar Land, TX 77478 USA

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 19期

关键词：

D O I：

10.1063/1.1371524

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Grating-coupled external-cavity quantum-cascade lasers were studied for temperatures from 80 to 230 K. At 80 K, a tuning range of similar to 65-88 nm are obtained for 4.5 and 5.1 mum laser amplifiers, respectively. The tuning ranges for both narrowed substantially with increasing temperature, to similar to 23 nm at 203 K. The threshold varied slowly versus wavelength, while the efficiency appeared to be close to optimum toward wavelengths shorter than the free running wavelength. (C) 2001 American Institute of Physics.

引用

页码：2834 / 2836

页数：3

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