Linewidth broadening factor of an interband cascade laser

被引：26
|
作者：
Deng, Yu [1 ,2 ,3 ]
Zhao, Bin-Bin [1 ,2 ,3 ]
Wang, Cheng [1 ]
机构：
[1] ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2019年 / 115卷 / 18期
基金：
中国国家自然科学基金;
关键词：
RELATIVE INTENSITY NOISE; ENHANCEMENT FACTOR; SEMICONDUCTOR-LASERS; EMISSION;
D O I：
10.1063/1.5123005
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This work reports the linewidth broadening factor (LBF) of a continuous-wave interband cascade laser operated both below and above threshold. Using the Hakki-Paoli method, the below-threshold LBFs around the gain peak are determined to be in the range of 1.1-1.4, where the thermal effect is carefully removed. Employing the self-mixing interferometry technique, the above-threshold LBFs are measured to be around 2.2, which do not increase with increasing pump current.
引用
收藏
页数：5
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