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Proceedings Paper

A new version of Stochastic-parallel-gradient-descent algorithm (SPGD) for phase correction of a distorted orbital angular momentum (OAM) beam
Author(s): LIn Jiao Ling; Yin Xiaoli; Chang Huan ; Cui Xiaozhou; Guo Yi-Lin; Liao Huan-Yu; Gao Chun-YU; Wu Guohua; Liu Guang-Yao; Jiang Jin-KUn; Tian Qing-Hua
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Paper Abstract

Atmospheric turbulence limits the performance of orbital angular momentum-based free-space optical communication (FSO-OAM) system. In order to compensate phase distortion induced by atmospheric turbulence, wavefront sensorless adaptive optics (WSAO) has been proposed and studied in recent years. In this paper a new version of SPGD called MZ-SPGD, which combines the Z-SPGD based on the deformable mirror influence function and the M-SPGD based on the Zernike polynomials, is proposed. Numerical simulations show that the hybrid method decreases convergence times markedly but can achieve the same compensated effect compared to Z-SPGD and M-SPGD.

Paper Details

Date Published: 20 February 2018
PDF: 6 pages
Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106973B (20 February 2018); doi: 10.1117/12.2315106
Show Author Affiliations
LIn Jiao Ling, Beijing University of Posts and Telecommunications (China)
Beijing Key Laboratory of Space-Ground Interconnection and Convergence, Beijing University of Posts and Telecommunications, (China)
Yin Xiaoli, Beijing University of Posts and Telecommunications (China)
Beijing Key Laboratory of Space-Ground Interconnection and Convergence, Beijing University of Posts (China)
Chang Huan , Beijing University of Posts and Telecommunications (China)
Cui Xiaozhou, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, Beijing University of Posts (China)
Guo Yi-Lin, Beijing University of Posts and Telecommunications (China)
Liao Huan-Yu, Beijing University of Posts and Telecommunications (China)
Gao Chun-YU, Beijing University of Posts and Telecommunications (China)
Wu Guohua, Beijing University of Posts and Telecommunications (China)
Liu Guang-Yao, Beijing University of Posts and Telecommunications (China)
Jiang Jin-KUn, Beijing University of Posts and Telecommunications (China)
Tian Qing-Hua, Beijing University of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 10697:
Fourth Seminar on Novel Optoelectronic Detection Technology and Application
Weiqi Jin; Ye Li, Editor(s)

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