Room temperature, continuous wave operation of distributed feedback quantum cascade lasers with widely spaced operation frequencies

被引：50
|
作者：
Wittmann, Andreas [1 ]
Giovannini, Marcella
Faist, Jerome
Hvozdara, Lubos
Blaser, Stephane
Hofstetter, Daniel
Gini, Emilio
机构：
[1] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland
[2] Alpes Lasers SA, CH-2000 Neuchatel, Switzerland
[3] Swiss Fed Inst Technol, FIRST Ctr Micro & Nanosci, CH-8093 Zurich, Switzerland
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 14期
关键词：
D O I：
10.1063/1.2358939
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Lasing properties of room temperature, continuous wave operated distributed feedback (DFB) quantum cascade lasers are reported. A bound-to-continuum active region was used to generate a broad gain spectrum. As a result, first-order DFB lasers employing different periods allowed us to achieve single mode continuous wave emission at several wavelengths ranging from 7.7 to 8.3 mu m at a temperature of +30 degrees C. The frequency span corresponds to 8% of the center frequency. (c) 2006 American Institute of Physics.
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页数：3
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