Mechanism research of orbital angular momentum detecting probability in atmospheric turbulence

doi:10.1117/12.2557761

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 自适应光学技术研究室（八室）

	Mechanism research of orbital angular momentum detecting probability in atmospheric turbulence
	Zhang, Lihong 1,2,3; Shen, Feng 1,3; Lan, Bin 1,3
	2020-07-12
会议日期	December 3, 2019 - December 5, 2019
会议地点	Beijing, China
卷号	11455
DOI	10.1117/12.2557761
页码	114550A
英文摘要	We analyze the topological charge of a Laguerre-Gaussian(LG) vortex beam transmitted in atmospheric turbulence. The analytic expression of the topological charge detection probability is derived to analyze the influences of turbulence and beam parameters. This theoretical model is applied to illustrate the OAM modal crosstalk of a LG vortex beam propagating in atmospheric turbulence. The scattering width of topological charge is defined, and its analytic expression is derived. The relationship between the refractive index structure constant of atmospheric turbulence and scattering width has been studied. Furthermore, the linear expression of the scattering variance, coherence parameter and the original topological charge of the vortex beam are obtained. In order to reduce the bit error rate (BER) caused by crosstalk and improve the performance of the communication system, we provide a theoretical basis for the selection of the topological charge spacing and the appropriate beam waist in different turbulence. © 2020 SPIE.
会议录	Proceedings of SPIE 11455 - Sixth Symposium on Novel Optoelectronic Detection Technology and Applications
文献子类	会议论文
语种	英语
ISSN号	0277-786X
内容类型	会议论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9901]
专题	光电技术研究所_自适应光学技术研究室（八室）
作者单位	1.Key Laboratory of Adaptive Optics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China 3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan; 610209, China;
推荐引用方式 GB/T 7714	Zhang, Lihong,Shen, Feng,Lan, Bin. Mechanism research of orbital angular momentum detecting probability in atmospheric turbulence[C]. 见:. Beijing, China. December 3, 2019 - December 5, 2019.