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题名:
Adaptive optics for the free-space coherent optical communications
作者: Liu, Chao1,2; Chen, Mo1,2,3; Chen, Shanqiu1,2; Xian, Hao1,2
刊名: OPTICS COMMUNICATIONS
出版日期: 2016-02-15
卷号: 361, 页码:21-24
关键词: Adaptive optics ; Free-space optical communication ; Coherent detection
DOI: 10.1016/j.optcom.2015.10.033
文章类型: Article
英文摘要: We present the results that the performances of the atmospheric coherent optical communications improved by a real 127-element adaptive optics system operating in 1550 nm wavelength on a 1.8 m telescope. The mixing efficiency and the BER of the homodyne free-space optical coherent communications have been analyzed with the correction of the adaptive optics system. It is shown that, the AO can expand the scope of the atmospheric turbulence condition D/r(0)(1550) from 1 to around 6.5 in which the coherent optical communications can function well. In order to acquire favorable results, the mixing efficiency should be larger than 0.4 and the residual wavefront error after the AO correction should be smaller than lambda/6. We also find that the mixing efficiency of the coherent homodyne receiver is approximate to the Strehl ratio of the far field of the signal light. In conclusion, we have shown that the adaptive optics is a very promising technique that can largely improve the performances of the free space coherent optical communications degraded by the atmospheric turbulence. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: ATMOSPHERIC COMPENSATION ; LASER COMMUNICATIONS ; PERFORMANCE ; SYSTEM ; LIGHT
收录类别: SCI
项目资助者: National Natural Science Foundation of China (NSFC)(61308082) ; Foundation of Western Light(A14K009)
语种: 英语
WOS记录号: WOS:000369229300005
ISSN号: 0030-4018
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3839
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Liu, Chao,Chen, Mo,Chen, Shanqiu,et al. Adaptive optics for the free-space coherent optical communications[J]. OPTICS COMMUNICATIONS,2016,361:21-24.
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