关键词: 部分相干光束/
大气湍流/
传输特性
English Abstract
Research progress of partially coherent beams propagation in turbulent atmosphere
Wang Fei1,2,Yu Jia-Yi1,2,
Liu Xian-Long3,
Cai Yang-Jian1,2,3
1.School of Physical Science and Technology, Soochow University, Suzhou 215006, China;
2.Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China;
3.Center of Light Manipulations and Applications, College of Physics and Electronics, Shandong Normal University, Jinan 250358, China
Fund Project:Project supported by the Major Research Plan of the National Natural Science Foundation of China (Grant No. 91750201), the National Natural Science Fund for Distinguished Young Scholar, China (Grant No. 11525418), the National Natural Science Foundation of China (Grant No. 11474213), and the Qing Lan Project of Jiangsu Province, China.Received Date:04 May 2018
Accepted Date:24 May 2018
Published Online:20 September 2019
Abstract:Compared with coherent laser beams, partially coherent beams have advantages of effectively reducing turbulence-induced extra beam spreading, beam wander and intensity scintillation on propagation through turbulent atmosphere, and have promising applications in free-space optical communications, laser radar and remote sensing. Recently, more and more attention was paid to the propagation of partially coherent beams through turbulent atmosphere. In this article, we first review historically the research progress of the propagation of partially coherent beams in atmospheric turbulence. And we describe in detail the basic theory for the calculation of average intensity, second-order moment and scintillation index of partially coherent beams in turbulence based on the extended Huygens-Fresnel principle and Rytov method. We also present a phase screen method of numerically simulating the propagation of coherent beams through turbulent atmosphere, and then extend such a method to treating the propagation of partially coherent beams.
Keywords: partially coherent beams/
atmospheric turbulence/
propagation characteristics
