Orbital angular momentum mode-demultiplexing scheme with partial angular receiving aperture

Zheng, Shilie, Hui, Xiaonan, Zhu, Jiangbo, Chi, Hao, Jin, Xiaofeng, Yu, Siyuan and Zhang, Xianmin (2015) Orbital angular momentum mode-demultiplexing scheme with partial angular receiving aperture. Optics Express, 23 (9). p. 12251. ISSN 1094-4087

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Official URL: https://doi.org/10.1364/OE.23.012251

Abstract

For long distance orbital angular momentum (OAM) based transmission, the conventional whole beam receiving scheme encounters the difficulty of large aperture due to the divergence of OAM beams. We propose a novel partial receiving scheme, using a restricted angular aperture to receive and demultiplex multi-OAM-mode beams. The scheme is theoretically analyzed to show that a regularly spaced OAM mode set remain orthogonal and therefore can be de-multiplexed. Experiments have been carried out to verify the feasibility. This partial receiving scheme can serve as an effective method with both space and cost savings for the OAM communications. It is applicable to both free space OAM optical communications and radio frequency (RF) OAM communications.

Item Type: Article
Subjects: F300 Physics
F900 Others in Physical Sciences
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Rachel Branson
Date Deposited: 01 Jun 2020 13:04
Last Modified: 01 Jun 2020 13:15
URI: http://nrl.northumbria.ac.uk/id/eprint/43285

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