Adaptive SMF Coupling Based on Precise-Delayed SPGD Algorithm and Its Application in Free Space Optical Communication

doi:10.1109/JPHOT.2018.2835721

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 自适应光学技术研究室（八室）

	Adaptive SMF Coupling Based on Precise-Delayed SPGD Algorithm and Its Application in Free Space Optical Communication
	Huang, Guan 1,2,3; Geng, Chao 1,2; Li, Feng 1,2; Yang, Yan 1,2,3; Li, Xinyang 1,2
刊名	IEEE PHOTONICS JOURNAL
	2018-06-01
卷号	10 期号:3 页码:7904212
关键词	Single-mode fiber coupling adaptive fiber coupler precise-delayed SPGD algorithm free space optical communication
ISSN号	1943-0655
DOI	10.1109/JPHOT.2018.2835721
文献子类	J
英文摘要	The adaptive coupling of laser beam from space into single-mode fiber (SMF) plays an important role in the fiber-based free space optical communication technology. This paper investigates a kind of adaptive SMF coupling system based on a novel corrector named adaptive fiber coupler, and an improved control algorithm named precisedelayed stochastic parallel gradient descent (PD-SPGD). Compared to the SPGD algorithm used previously, PD-SPGD can compensate for the inherent response delay of the controlled system by setting a precise time delay between the disturbed voltages and the performance metrics. The experimental results show that this new algorithm increases the iteration rate from 3 to 8 kHz and decreases the convergence time from 6.3 to 2.5 ms when the static angular errors was corrected. As a result, the control bandwidth of the sinusoidal angular jitters is more than doubled. At the end, a preliminary atmospheric compensation experiment over a 520 m near-ground propagation path is conducted to verify the effectiveness of the method mentioned above.
WOS关键词	SINGLE-MODE FIBER ; COHERENT ; TURBULENCE ; ARRAY ; EFFICIENCY ; RECEIVER
语种	英语
WOS记录号	WOS:000434451400001
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9279]
专题	光电技术研究所_自适应光学技术研究室（八室）
作者单位	1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, China; 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式 GB/T 7714	Huang, Guan,Geng, Chao,Li, Feng,et al. Adaptive SMF Coupling Based on Precise-Delayed SPGD Algorithm and Its Application in Free Space Optical Communication[J]. IEEE PHOTONICS JOURNAL,2018,10(3):7904212.
APA	Huang, Guan,Geng, Chao,Li, Feng,Yang, Yan,&Li, Xinyang.(2018).Adaptive SMF Coupling Based on Precise-Delayed SPGD Algorithm and Its Application in Free Space Optical Communication.IEEE PHOTONICS JOURNAL,10(3),7904212.
MLA	Huang, Guan,et al."Adaptive SMF Coupling Based on Precise-Delayed SPGD Algorithm and Its Application in Free Space Optical Communication".IEEE PHOTONICS JOURNAL 10.3(2018):7904212.