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	Adaptive stochastic parallel gradient descent approach for efficient fiber coupling
	Hu, Qintao2,3,4; Zhen, Liangli1; Mao, Yao2,3,4; Zhu, Shiwei2; Zhou, Xi3,4; Zhou, Guozhong3,4
刊名	Optics Express
	2020-04-27
卷号	28期号:9页码:13141-13154
ISSN号	1094-4087
DOI	10.1364/OE.390762
文献子类	期刊论文
英文摘要	In high-speed free-space optical communication systems, the received laser beam must be coupled into a single-mode fiber at the input of the receiver module. However, propagation through atmospheric turbulence degrades the spatial coherence of a laser beam and poses challenges for fiber coupling. In this paper, we propose a novel method, called as adaptive stochastic parallel gradient descent (ASPGD), to achieve efficient fiber coupling. To be specific, we formulate the fiber coupling problem as a model-free optimization problem and solve it using ASPGD in parallel. To avoid converging to the extremum points and accelerate its convergence speed, we integrate the momentum and the adaptive gain coefficient estimation to the original stochastic parallel gradient descent (SPGD) method. Simulation and experimental results demonstrate that the proposed method reduces 50% of iterations, while keeping the stability by comparing it with the original SPGD method. © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
语种	英语
WOS记录号	WOS:000530854700050
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/10110]
专题	光电技术研究所_光电工程总体研究室（一室）
作者单位	1.Institute of High Performance Computing, Agency for Science, Technology and Research, Singapore 2.University of Chinese Academy of Sciences, Beijing, China; 3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China; 4.Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu, China;
推荐引用方式 GB/T 7714	Hu, Qintao,Zhen, Liangli,Mao, Yao,et al. Adaptive stochastic parallel gradient descent approach for efficient fiber coupling[J]. Optics Express,2020,28(9):13141-13154.
APA	Hu, Qintao,Zhen, Liangli,Mao, Yao,Zhu, Shiwei,Zhou, Xi,&Zhou, Guozhong.(2020).Adaptive stochastic parallel gradient descent approach for efficient fiber coupling.Optics Express,28(9),13141-13154.
MLA	Hu, Qintao,et al."Adaptive stochastic parallel gradient descent approach for efficient fiber coupling".Optics Express 28.9(2020):13141-13154.

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