Reconfigurable beam system for non-line-of-sight free-space optical communication

In this paper, we propose a reconfigurable beam-shaping system to permit energy-efficient non-line-of-sight (NLOS) free-space optical communication. Light is steered around obstacles blocking the direct communication pathway and reaches a receiver after reflecting off of a diffuse surface. A coheren...

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Detalles Bibliográficos
Autores principales: Cao, Zizheng, Zhang, Xuebing, Osnabrugge, Gerwin, Li, Juhao, Vellekoop, Ivo M., Koonen, Antonius M. J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804797/
https://www.ncbi.nlm.nih.gov/pubmed/31645917
http://dx.doi.org/10.1038/s41377-019-0177-3
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author Cao, Zizheng
Zhang, Xuebing
Osnabrugge, Gerwin
Li, Juhao
Vellekoop, Ivo M.
Koonen, Antonius M. J.
author_facet Cao, Zizheng
Zhang, Xuebing
Osnabrugge, Gerwin
Li, Juhao
Vellekoop, Ivo M.
Koonen, Antonius M. J.
author_sort Cao, Zizheng
collection PubMed
description In this paper, we propose a reconfigurable beam-shaping system to permit energy-efficient non-line-of-sight (NLOS) free-space optical communication. Light is steered around obstacles blocking the direct communication pathway and reaches a receiver after reflecting off of a diffuse surface. A coherent array optical transmitter (CAO-Tx) is used to spatially shape the wavefront of the light incident on a diffuse surface. Wavefront shaping is used to enhance the amount of diffusely reflected light reaching the optical receiver. Synthetic NLOS experiments for a signal reflected over an angular range of 20° are presented. A record-breaking 30-Gbit/s orthogonal frequency-division multiplexing signal is transmitted over a diffused optical wireless link with a >17-dB gain.
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spelling pubmed-68047972019-10-23 Reconfigurable beam system for non-line-of-sight free-space optical communication Cao, Zizheng Zhang, Xuebing Osnabrugge, Gerwin Li, Juhao Vellekoop, Ivo M. Koonen, Antonius M. J. Light Sci Appl Article In this paper, we propose a reconfigurable beam-shaping system to permit energy-efficient non-line-of-sight (NLOS) free-space optical communication. Light is steered around obstacles blocking the direct communication pathway and reaches a receiver after reflecting off of a diffuse surface. A coherent array optical transmitter (CAO-Tx) is used to spatially shape the wavefront of the light incident on a diffuse surface. Wavefront shaping is used to enhance the amount of diffusely reflected light reaching the optical receiver. Synthetic NLOS experiments for a signal reflected over an angular range of 20° are presented. A record-breaking 30-Gbit/s orthogonal frequency-division multiplexing signal is transmitted over a diffused optical wireless link with a >17-dB gain. Nature Publishing Group UK 2019-07-24 /pmc/articles/PMC6804797/ /pubmed/31645917 http://dx.doi.org/10.1038/s41377-019-0177-3 Text en © The Author(s) 2019 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Cao, Zizheng
Zhang, Xuebing
Osnabrugge, Gerwin
Li, Juhao
Vellekoop, Ivo M.
Koonen, Antonius M. J.
Reconfigurable beam system for non-line-of-sight free-space optical communication
title Reconfigurable beam system for non-line-of-sight free-space optical communication
title_full Reconfigurable beam system for non-line-of-sight free-space optical communication
title_fullStr Reconfigurable beam system for non-line-of-sight free-space optical communication
title_full_unstemmed Reconfigurable beam system for non-line-of-sight free-space optical communication
title_short Reconfigurable beam system for non-line-of-sight free-space optical communication
title_sort reconfigurable beam system for non-line-of-sight free-space optical communication
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804797/
https://www.ncbi.nlm.nih.gov/pubmed/31645917
http://dx.doi.org/10.1038/s41377-019-0177-3
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