High-Power High-Temperature Continuous-Wave Operation of Quantum Cascade Laser at λ∼4.6 μm without Lateral Regrowth

被引：5
|
作者：
Liang Ping [1 ]
Liu Feng-Qi [1 ]
Zhang Jin-Chuan [1 ]
Wang Li-Jun [1 ]
Liu Jun-Qi [1 ]
Wang Zhan-Guo [1 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2012年 / 29卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Threshold current density - Molecular beam epitaxy - Continuous wave lasers;
D O I：
10.1088/0256-307X/29/7/074215
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
High-power quantum cascade lasers (lambda = 4.6 mu m) working in continuous wave (cw) up to 90 degrees C are presented. The material was grown by solid-source molecular beam epitaxy and processed into narrow conventional ridge geometry without lateral regrowth. High cw output power of 850mW at 10 degrees C and more than 200mW at 90 degrees C were obtained with threshold current densities of 1.34 and 2.47 kA/cm(2), respectively, for a high-reflectivity-coated 12-mu m-wide and 3-mm-long laser.
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页数：3
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