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Generation and Propagation Characteristics Analysis Through Atmosphere of Gaussian-Bessel-correlated Schell-model Beam

Authors:
Zeyu Zhou
Xiuhua Yuan

Keywords: GBSM; generation; turbulence; propagation

Abstract:
In this paper, propagation characteristics of Gaussian-Bessel-correlated Schell-model beam (GBSM) in turbulent atmosphere have been studied through simulation and experimentation. Without studying its quality in communication directly, we use scintillation index (SI) and beam expansion to estimate such beams as signal lights. We use Monte-Carlo method to generate the phase screen for modeling the atmosphere in simulation. An experiment consisting of a phase-only spatial light modulator (SLM) and a rotating ground-glass disk (RGGD) is used to generate a GBSM beam. A box with fans and heaters inside creates a real, but much stronger, turbulent atmosphere environment along the propagation path. Comparing to other kinds of beams, like conventional Gaussian Schell-model beam (GSM), GBSM has a faster speed of beam expansion and better fluctuation characteristics in far propagation range while GSM and GBSM have the same initial coherence radius.

Pages: 60 to 64

Copyright: Copyright (c) IARIA, 2018

Publication date: April 22, 2018

Published in: conference

ISSN: 2308-4480

ISBN: 978-1-61208-624-8

Location: Athens, Greece

Dates: from April 22, 2018 to April 26, 2018