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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): Xiao-li Yin; Jiao-Ling Lin; Huan Chang; Xiao-zhou Cui; Yi-Lin Guo; Huan-Yu Liao; Chun-Yu Gao; Guo-hua Wu; Guang-Yao Liu; Jin-Kun Jiang; Qing-Hua Tian
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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
Xiao-li Yin, Beijing Univ. of Posts and Telecommunications (China)
Jiao-Ling Lin, Beijing Univ. of Posts and Telecommunications (China)
Huan Chang, Beijing Univ. of Posts and Telecommunications (China)
Xiao-zhou Cui, Beijing Univ. of Posts and Telecommunications (China)
Yi-Lin Guo, Beijing Univ. of Posts and Telecommunications (China)
Huan-Yu Liao, Beijing Univ. of Posts and Telecommunications (China)
Chun-Yu Gao, Beijing Univ. of Posts and Telecommunications (China)
Guo-hua Wu, Beijing Univ. of Posts and Telecommunications (China)
Guang-Yao Liu, Beijing Univ. of Posts and Telecommunications (China)
Jin-Kun Jiang, Beijing Univ. of Posts and Telecommunications (China)
Qing-Hua Tian, Beijing Univ. 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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