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题名: A mini-staged multi-stacked quantum cascade laser for improved optical and thermal performance
作者: Liu JQ;  Liu FQ;  Li L;  Wang LJ;  Wang ZG
发表日期: 2009
摘要: In this paper, a mini-staged multi-stacked quantum cascade laser structure with a designed wavelength of 4.7 mu m is presented. By introducing five 0.5 mu m thick high thermal conductivity InP interbuffer layers, the 60-stages active region core of the quantum cascade laser is divided into six equal parts. Based on simulation, this kind of quantum cascade laser with a 10 mu m ridge width gives nearly circular two-dimensional far-field distribution (FWHM = 32.8 degrees x 29 degrees) and good beam quality parameters M-2 = 1.32 x 1.31 in the fast axis (growth direction) and the slow axis (lateral direction). Due to the enhancement of lateral heat extraction through the interbuffer layers, compared to the conventional structure, a decrease of about 5-6% for the maximum temperature in the active region core of the mini-staged multi-stacked quantum cascade laser with indium-surrounded and gold-electroplated packaging profiles is obtained at all possible dissipated electrical power levels.
KOS主题词: room temperature
刊名: SEMICONDUCTOR SCIENCE AND TECHNOLOGY
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Liu JQ ; Liu FQ ; Li L ; Wang LJ ; Wang ZG .A mini-staged multi-stacked quantum cascade laser for improved optical and thermal performance ,SEMICONDUCTOR SCIENCE AND TECHNOLOGY,2009 ,24(7):Art. No. 075023
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