Off-axis points encoding/decoding with orbital angular momentum spectrum

Encoding/decoding off-axis points with discrete orbital angular momentum (OAM) modes is investigated. On-axis Laguerre-Gaussian (LG) beams are expanded into off-axis OAM spectra, with which off-axis points are encoded. The influence of the mode and the displacement of the LG beam on the spread of th...

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Detalles Bibliográficos
Autores principales: Chu, Jiaqi, Chu, Daping, Smithwitck, Quinn
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5341568/
https://www.ncbi.nlm.nih.gov/pubmed/28272543
http://dx.doi.org/10.1038/srep43757
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author Chu, Jiaqi
Chu, Daping
Smithwitck, Quinn
author_facet Chu, Jiaqi
Chu, Daping
Smithwitck, Quinn
author_sort Chu, Jiaqi
collection PubMed
description Encoding/decoding off-axis points with discrete orbital angular momentum (OAM) modes is investigated. On-axis Laguerre-Gaussian (LG) beams are expanded into off-axis OAM spectra, with which off-axis points are encoded. The influence of the mode and the displacement of the LG beam on the spread of the OAM spectrum is analysed. The results show that not only the conventional on-axis point, but also off-axis points, can be encoded and decoded with OAM of light. This is confirmed experimentally. The analytical result here provides a solid foundation to use OAM modes to encode two-dimensional high density information for multiplexing and to analyse the effect of mis-alignment in practical OAM applications.
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spelling pubmed-53415682017-03-10 Off-axis points encoding/decoding with orbital angular momentum spectrum Chu, Jiaqi Chu, Daping Smithwitck, Quinn Sci Rep Article Encoding/decoding off-axis points with discrete orbital angular momentum (OAM) modes is investigated. On-axis Laguerre-Gaussian (LG) beams are expanded into off-axis OAM spectra, with which off-axis points are encoded. The influence of the mode and the displacement of the LG beam on the spread of the OAM spectrum is analysed. The results show that not only the conventional on-axis point, but also off-axis points, can be encoded and decoded with OAM of light. This is confirmed experimentally. The analytical result here provides a solid foundation to use OAM modes to encode two-dimensional high density information for multiplexing and to analyse the effect of mis-alignment in practical OAM applications. Nature Publishing Group 2017-03-08 /pmc/articles/PMC5341568/ /pubmed/28272543 http://dx.doi.org/10.1038/srep43757 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Chu, Jiaqi
Chu, Daping
Smithwitck, Quinn
Off-axis points encoding/decoding with orbital angular momentum spectrum
title Off-axis points encoding/decoding with orbital angular momentum spectrum
title_full Off-axis points encoding/decoding with orbital angular momentum spectrum
title_fullStr Off-axis points encoding/decoding with orbital angular momentum spectrum
title_full_unstemmed Off-axis points encoding/decoding with orbital angular momentum spectrum
title_short Off-axis points encoding/decoding with orbital angular momentum spectrum
title_sort off-axis points encoding/decoding with orbital angular momentum spectrum
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5341568/
https://www.ncbi.nlm.nih.gov/pubmed/28272543
http://dx.doi.org/10.1038/srep43757
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AT chudaping offaxispointsencodingdecodingwithorbitalangularmomentumspectrum
AT smithwitckquinn offaxispointsencodingdecodingwithorbitalangularmomentumspectrum

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