Open AccessReducing the cross-talk among different orbital angular momentum modes in turbulent atmosphere by using a focusing mirror
Author(s) -
Mengyao Zhou,
Yunqin Zhou,
Guannan Wu,
Yangjian Cai
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.010280
Subject(s) - crosstalk , angular momentum , physics , optics , free space optical communication , orbital angular momentum of light , optical communication , orbital angular momentum multiplexing , atmospheric turbulence , free space , optical vortex , turbulence , computational physics , total angular momentum quantum number , classical mechanics , thermodynamics
The cross-talk among different orbital angular momentum (OAM) modes induced by the turbulent atmosphere is a challenging effect commonly occurring in OAM-based free-space optical (FSO) communication. The aim of this study is to propose a simple method to reduce the crosstalk and demonstrate its effect by analytical derivation and numerical simulation. It is found that the crosstalk is largely reduced by using a focusing mirror. Our results will be useful in free-space optical communication.