Статья

Optical communications using orbital angular momentum beams

Alan E. WillnerDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAHao HuangDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAYuqi YanDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAYongxiong RenDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAN. AhmedDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAGuodong XieDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAChangjing BaoDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAL. LiDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAYinwen CaoDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAZhe ZhaoDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USAJ. WangWuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Hubei, ChinaMartin P. J. LaverySchool of Engineering, University of Glasgow, Glasgow G12 8QQ, Scotland, UKMoshe TurSchool of Electrical Engineering, Tel Aviv University, Ramat Aviv 69978, IsraelSiddharth RamachandranDepartment of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, USAAndreas F. MolischDepartment of Electrical Engineering at University of Southern California, Los Angeles, California 90089, USANima AshrafiNxGen Partners, Dallas, Texas 75219, USASolyman AshrafiNxGen Partners, Dallas, Texas 75219, USA

2015en

ABI

Аннотация

Orbital angular momentum (OAM), which describes the “phase twist” (helical phase pattern) of light beams, has recently gained interest due to its potential applications in many diverse areas. Particularly promising is the use of OAM for optical communications since: (i) coaxially propagating OAM beams with different azimuthal OAM states are mutually orthogonal, (ii) inter-beam crosstalk can be minimized, and (iii) the beams can be efficiently multiplexed and demultiplexed. As a result, multiple OAM states could be used as different carriers for multiplexing and transmitting multiple data streams, thereby potentially increasing the system capacity. In this paper, we review recent progress in OAM beam generation/detection, multiplexing/demultiplexing, and its potential applications in different scenarios including free-space optical communications, fiber-optic communications, and RF communications. Technical challenges and perspectives of OAM beams are also discussed.

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Идентификаторы

DOI: 10.1364/aop.7.000066

Цитирования и источники

Цитирований: 2Использованных источников: 0

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