Aiming for high-capacity multi-modal free-space optical transmission leveraging complete modal basis sets

Abstract

Free-space optical (FSO) communication has gained much interest due to its capability of providing not only a cost-efficient solution where the optical fiber is too expensive or too difficult to deploy but also a much higher system capacity than its radio-frequency competitor. In addition to conventional polarization-division multiplexing and coherent detection, combining with mode-division multiplexing can unlock the full potential of FSO communications and achieve ultra-high spectral efficiency. In this paper, we review the recent progress of multi-modal FSO communication systems leveraging complete modal basis sets. Some practical issues for system design are discussed. We also present two latest demonstrations that achieved the record-high single-wavelength data rate using a commercial transponder and a pair of commercial multiplexer/demultiplexer for multi-modal FSO transmission without turbulence and in atmospheric turbulence, respectively, showing the potential of such a technique.

Publication DOI: https://doi.org/10.1016/j.optcom.2023.129531
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
Additional Information: Copyright © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license
Uncontrolled Keywords: Free space optics,Optical communications
Publication ISSN: 1873-0310
Last Modified: 23 May 2024 07:23
Date Deposited: 15 May 2023 09:44
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Related URLs: https://www.sci ... 278X?via%3Dihub (Publisher URL)
PURE Output Type: Article
Published Date: 2023-08-15
Published Online Date: 2023-04-26
Accepted Date: 2023-04-20
Authors: Hu, Zhouyi
Li, Yiming (ORCID Profile 0000-0002-9442-2591)
Chen, Zhaozhong
Benton, David (ORCID Profile 0000-0003-0663-1404)
Ali, Abdallah A.I.
Patel, Mohammed
Lavery, Martin P.J.
Ellis, Andrew (ORCID Profile 0000-0002-0417-0547)

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