Non-Gaussian statistics of partially coherent light inatmospheric turbulence

doi:10.1088/1674-1056/ab8373

Abstract We derive theoretically and verify experimentally a concise general expression for the normalized intensity correlations (IC) of partially coherent light in a weak atmospheric turbulence in the fast detector measurement regime. The derived relation reveals that the medium turbulence acts, in general, as an additional noise source enhancing the IC of partially coherent beams. The maximum of the beam IC is, in general, enhanced, causing the fields to exhibit super-Gaussian statistics. On the other hand, the relation indicates that turbulence-induced noise is negligible for sufficiently low coherence light, which reveals the condition for the turbulence-free correlation imaging.

Keywords: partially coherent beam atmospheric turbulence intensity correlation

Received: 28 January 2020
Revised: 11 March 2020
Accepted manuscript online:

PACS:	42.25.Kb	(Coherence)
	42.68.Bz	(Atmospheric turbulence effects)
	42.60.Jf	(Beam characteristics: profile, intensity, and power; spatial pattern formation)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11525418, 91750201, 11874046, 11974218, 11904247, and 11947239), the National Key Research and Development Project of China (Grant No. 2019YFA0705000), Innovation Group of Jinan, China (Grant No. 2018GXRC010), Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No. 19KJB140017), China Postdoctoral Science Foundation (Grant No. 2019M661915), Natural Science Foundation of Shandong Province, China (Grant No. ZR2019QA004), Priority Academic Program Development of Jiangsu Higher Education Institutions, China, Qing Lan Project of Jiangsu Province, China, and Natural Sciences and Engineering Research Council of Canada (Grant No. RGPIN-2018-05497).

Corresponding Authors: Fei Wang, Yahong Chen, Yangjian Cai
E-mail: fwang@suda.edu.cn;yahongchen@suda.edu.cn;yangjiancai@suda.edu.cn

Cite this article:

Hao Ni(倪昊), Chunhao Liang(梁春豪), Fei Wang(王飞), Yahong Chen(陈亚红), Sergey A. Ponomarenko, Yangjian Cai(蔡阳健) Non-Gaussian statistics of partially coherent light inatmospheric turbulence 2020 Chin. Phys. B 29 064203

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