Atmospheric turbulence seriously degrades the performance of free space optical (FSO) communication systems, especially the coupling efficiency. In this paper, we propose a stochastic parallel gradient descent (SPGD) algorithm to compensate the atmospheric turbulence in FSO communication system. Theoretical analysis and work flow of the algorithm are given. Both simulation and experimental results indicate that the coupling efficiency can be increased from 12% to more than 80% after 270 iterations or more than threefold, which implies a significant improvement of the performance.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Stochastic parallel gradient descent laser beam control algorithm for atmospheric compensation in free space optical communication


    Contributors:
    Cao, Jingtai (author) / Zhao, Xiaohui (author) / Li, Zhaokun (author) / Liu, Wei (author) / Song, Yang (author)

    Published in:

    Optik ; 125 , 20 ; 6142-6147


    Publication date :

    2014


    Size :

    6 Seiten, 31 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English