自由空间轨道角动量无线光通信研究进展  

Research progress on free space orbital angular momentum wireless optical communication

作　　者：王伟[1,2,3] 李晓记 任亚萍[3] 杜卫海 刘致宏 WANG Wei;LI Xiaoji;REN Yaping;DU Weihai;LIU Zhihong(Key Laboratory of Cognitive Radio and Information Processing of Ministry of Education,Guilin University of Electronic Technology,Guilin Guangxi 541004,China;Guangxi Experiment Center of Information Science,Guilin Guangxi 541004,China;School of Marine Information Engineering,Guilin University of Electronic Technology,Beihai Guangxi 536000,China)

机构地区：[1]桂林电子科技大学认知无线电与信息处理教育部重点实验室,广西桂林541004 [2]广西信息科学实验中心,广西桂林541004 [3]桂林电子科技大学海洋信息工程学院,广西北海536000

出　　处：《光通信技术》2019年第4期12-17,共6页Optical Communication Technology

基　　金：国家自然科学基金项目(编号:61761014)资助;广西信息科学实验中心平台建设项目(编号:PT1604)资助;广西研究生教育创新计划项目(编号:YCSW2019152)资助

摘　　要：轨道角动量(OAM)为无线光通信提供了新的信息调制维度,极大地提升了系统的信道容量和频谱利用率。目前,基于OAM的新型无线光通信体制引起了学术界的极大关注。首先介绍了通信方式,其次依次综述了大气湍流随机相位屏、大气湍流下传输特性和大气湍流效应抑制策略,最后展望了自由空间OAM无线光通信的应用前景和研究趋势。Orbital angular momentum(OAM) provides a novel information modulation degree for wireless optical communication, which can promote the channel capacity and spectral efficiency tremendously. Currently, the OAM wireless optical communication regime has attracted the highly interest of academic community. Firstly, this paper reviews the communication approaches of OAM wireless optical communication, then investigates the random phase screen for atmospheric turbulence, transmission characteristics of OAM under atmospheric turbulence and mitigation schemes for atmospheric turbulence effects. And some application prospects and research trends for OAM wireless optical communication are discussed finally.

关 键 词：轨道角动量 无线光通信 大气湍流 

分 类 号：TN929.1[电子电信—通信与信息系统]