Long-distance propagation of pseudo-partially coherent Gaussian Schell-model beams in atmospheric turbulence

doi:10.1088/1674-1056/21/9/094202

Abstract Propagation properties of spatially pseudo-partially coherent Gaussian Schell-model beams through the atmospheric turbulence over a long-distance uplink path are studied by numerical simulation. A linear coordination transformation is introduced to overcome the window effect and the loss-of-resolution problem. The beam spreading, beam wandering, and intensity scintillation as functions of turbulence strength, source correlation length, and change frequency of random phase that models the partial coherence of the source are analyzed. It is found that the beam spreading and the intensity scintillation of the partially coherent beam are less affected by the turbulence than those of the coherent one, but it suffers from severer diffractive effect, and the change frequency of random phase has no evident influence on it. The beam wandering is insensitive to the variation of source correlation length, and decreases firstly then goes to a fixed value as the change frequency increases.

Keywords: long-distance propagation pseudo-partially coherent Gaussian Schell-model beam atmospheric turbulence numerical simulation

Received: 23 November 2011
Revised: 12 February 2012
Accepted manuscript online:

PACS:	42.25.Bs	(Wave propagation, transmission and absorption)
	42.25.Kb	(Coherence)
	92.60.Ta	(Electromagnetic wave propagation)
	92.60.hk	(Convection, turbulence, and diffusion)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61107066 and 40805006).

Corresponding Authors: Qian Xian-Mei
E-mail: qianxianmei@aiofm.ac.cn

Cite this article:

Qian Xian-Mei (钱仙妹), Zhu Wen-Yue (朱文越), Rao Rui-Zhong (饶瑞中) Long-distance propagation of pseudo-partially coherent Gaussian Schell-model beams in atmospheric turbulence 2012 Chin. Phys. B 21 094202

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Long-distance propagation of pseudo-partially coherent Gaussian Schell-model beams in atmospheric turbulence

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