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A new version of Stochastic-parallel-gradient-descent algorithm (SPGD) for phase correction of a distorted orbital angular momentum (OAM) beam

  • 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
  • Beijing University of Posts and Telecommunications

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationFourth Seminar on Novel Optoelectronic Detection Technology and Application
EditorsGuofan Jin, Guangjun Zhang
PublisherSPIE
ISBN (Electronic)9781510619470
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event4th Seminar on Novel Optoelectronic Detection Technology and Application 2018 - Nanjing, China
Duration: 24 Oct 201726 Oct 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10697
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference4th Seminar on Novel Optoelectronic Detection Technology and Application 2018
Country/TerritoryChina
CityNanjing
Period24/10/1726/10/17

Keywords

  • adaptive optics
  • OAM
  • SPGD algorithm
  • WSAO

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