Open AccessHollow top‐hat DOE shaping method applied in space uplink chaotic optical communication for BER improvement
Author(s) -
Li Mi,
Chen Yuan,
Yu Jianjie,
Chen Minwei,
Song Yuejiang
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2019.4130
Subject(s) - free space optical communication , transmission (telecommunications) , optical communication , chaotic , bit error rate , optics , telecommunications link , beam (structure) , electronic engineering , computer science , communications system , gaussian beam , beam propagation method , physics , telecommunications , engineering , refractive index , channel (broadcasting) , artificial intelligence
As the traditional refractive optical telescope blocks part of the transmission beam, the transmission efficiency in space chaotic optical communication is needed to be improved. A couple of diffractive optical elements (DOEs) are introduced into the optical subsystem at transmitting terminal to avoid the obscuration through shaping transmission beam into hollow top‐hat beam (HTB). The simulation results indicate that shaping transmission beam into HTB is more efficient than traditional hollow Gaussian beam in bit error rate (BER) improvement of space chaotic optical communication. The results are significant for the optimisation design of space uplink chaotic optical communication system.