SEMI OpenIR  > 中国科学院半导体研究所(2009年前)
Optimal distance from high power laser diode to cylindrical microlens in a coupling system
Wang Xiaowei; Ma Xiaoyu; Xiao Jianwei; Fang Gaozhan; Feng Xiaoning; Liu Yuanyuan; Liu Bin
2003
Source PublicationChinese Optics Letters
Volume1Issue:2Pages:96-98
AbstractIn a practical coupling system, a cylindrical microlens is used to collimate the emission of a high powerlaser diode (LD) in the dimension perpendicular to the junction plane. Using passive alignment, the LD isplaced in the focus of the cylindrical microlens generally, regardless of the performance of the multimodeoptical fiber and the LD. In this paper, a more complete analysis is arrived at by ray-tracing technique,by which the angle θ of the ray after refraction is computed as a function of the angle θo of the ray beforerefraction. The focus of the cylindrical microlens is not always the optimal position of the LD. In fact, inorder to achieve a higher coupling efficiency, the optimal distance from the LD to the cylindrical microlensis dependent on not only the radius R and the index of refraction n of the cylindrical microlens, but alsothe divergence angle of the LD in the dimension perpendicular to the junction plane and the numericalaperture (NA) of the multimode optical fiber. The results of this discussion are in good agreement withexperimental results.
metadata_83中科院半导体所国家光电子工艺中心
Subject Area半导体器件
Indexed ByCSCD
Language英语
CSCD IDCSCD:1586361
Date Available2010-11-23
Citation statistics
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/17513
Collection中国科学院半导体研究所(2009年前)
Recommended Citation
GB/T 7714
Wang Xiaowei,Ma Xiaoyu,Xiao Jianwei,et al. Optimal distance from high power laser diode to cylindrical microlens in a coupling system[J]. Chinese Optics Letters,2003,1(2):96-98.
APA Wang Xiaowei.,Ma Xiaoyu.,Xiao Jianwei.,Fang Gaozhan.,Feng Xiaoning.,...&Liu Bin.(2003).Optimal distance from high power laser diode to cylindrical microlens in a coupling system.Chinese Optics Letters,1(2),96-98.
MLA Wang Xiaowei,et al."Optimal distance from high power laser diode to cylindrical microlens in a coupling system".Chinese Optics Letters 1.2(2003):96-98.
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