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Study of Aperture-Averaged Scintillation for a Partially Coherent Gaussian Schell-Model Beam Propagation in Slant Atmospheric Turbulence

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Abstract:

Based on the extended Huygens-Fresnel principle, scintillation of a partially coherent Gaussian Schell-model (GSM) beam propagation in weakly slant atmospheric turbulence is studied. The expression of aperture-averaging factor of the system receiver is derived. We analyzed the aperture-averaged scintillation index numerically. A comparison of the aperture-averaged scintillation of the beam propagation in slant path with that of the beam propagation in horizontal path is made. Results obtained show using partially coherent beams and considering aperture-averaging effect can decrease the scintillation and improve the optical communication system performance.

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Periodical:

Advanced Materials Research (Volume 571)

Pages:

337-341

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.571.337

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Online since:

September 2012

Authors:

Ya Qing Li, Zhen Sen Wu, Yuan Yuan Zhang, Han Lu Zhang

Keywords:

Aperture-Averaging Factor, Atmospheric Turbulence, Partially Coherent Beam, Scintillation Index

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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