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Investigation of isolation for free space laser communication in the mono-wavelength optical T/R channels
Xia, Fangyuan1,2,3; Yang, Jianfeng1; Yao, Zhoushi3; Song, Yansong3; Ren, Lanxu3; Tan, Qinggui3
作者部门月球与深空探测技术研究室
2019-03
发表期刊Optik
ISSN304026
卷号181页码:738-747
产权排序1
摘要Favorable isolation performance in optical transmitting-receiving (T/R) channels is key to establishing full-duplex bi-directional laser communication links when designing mono-wavelength laser communication terminals. This study proposes a novel design scheme for T/R channels that use a single laser wavelength. The system includes measures such as the deflection at λ/4 wave plate angles, light trap installation at a polarization beam splitter, and removal of polarization analyzers in optimized systems. A mathematical model describing isolation in the optical T/R channels is presented. Three types of factors that affect the isolation of optical T/R channels were analyzed and simulated in detail. The present simulation results show that the roughness of the λ/4 wave plate and the solid angle of the detector field of view are exponentially related to T/R isolation, which can thus be regarded as the most significant factors affecting isolation. According to the present design scheme, the prototype T/R channel was developed for measuring isolation. The measured value (77.8 dB) agrees well with the result determined using the established mathmatical model (77.3 dB). Conclusively, the present theoretical model can provideguidance for optimizing isolation in a mono-wavelength optical channel. Thus, it can be applied extensively in laser communication systems, including inter-satellite networks. ? 2018 Elsevier GmbH
DOI10.1016/j.ijleo.2018.12.090
收录类别EI
语种英语
出版者Elsevier GmbH
EI入藏号20185306321881
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/31106
专题月球与深空探测技术研究室
通讯作者Xia, Fangyuan
作者单位1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Xi'an Institute of Space Radio Technology, Xi'an; 710100, China
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Xia, Fangyuan,Yang, Jianfeng,Yao, Zhoushi,et al. Investigation of isolation for free space laser communication in the mono-wavelength optical T/R channels[J]. Optik,2019,181:738-747.
APA Xia, Fangyuan,Yang, Jianfeng,Yao, Zhoushi,Song, Yansong,Ren, Lanxu,&Tan, Qinggui.(2019).Investigation of isolation for free space laser communication in the mono-wavelength optical T/R channels.Optik,181,738-747.
MLA Xia, Fangyuan,et al."Investigation of isolation for free space laser communication in the mono-wavelength optical T/R channels".Optik 181(2019):738-747.
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