Effects of Atmosphere Turbulence on the Purity of Light Carrying Orbital Angular Momentum Employing Zernike Polynomials Method

摘要：

　　Employing the Zernike Polynomials method,the propagation characteristics of a Laguerre-Gaussian(LG)beam carrying orbital angular momentum(OAM)through the turbulent atmosphere are researched,we establish the random phase screens to emulate atmosphere turbulence according with the Kolmogorov spectrum model and simulate free-space propagation by virtue of the Fresnel diffraction.Intensity and phase distribution,OAM spectrum of LG beam affected by atmosphere turbulence are analyzed.The research results show that the atmosphere turbulence will lead to the spread of topological charge,the variation trend of OAM purity with distance and atmosphere turbulence intensity are obtained by calculations and simulations.

关键词： orbital angular momentum atmosphere turbulence Zernike Polynomials method topological charge OAM purity

作者: Xiao-li Yin Can Xu Ji Hao Jing-jing Han Xiang-jun Xin Li Li Chong-xiu Yu

作者单位: School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,C School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,C School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,C State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts

会议类型: 国际会议

会议名称: The 13th International Conference on Optical Communications and Networks, ICOCN 2014(2014第13届光通信与网络国际会议)

会议地点: 苏州

会议语种:英文

页码: 1-4

在线出版日期: 2014-11-09（万方平台首次上网日期，不代表论文的发表时间）