Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber

Abstract We propose and numerically demonstrate a conversion and multicasting scheme of orbital angular momentum (OAM) states by using N-core supermode fiber (NCSF), where the topological charges of converted OAM states mainly depend on the injected OAM state and the number of fiber cores. The conve...

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Autores principales:	Guang-hao Shao, Shao-cheng Yan, Wei Luo, Guo-Wei Lu, Yan-qing Lu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2dd0639c801349db86926264b14513e2
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spelling	oai:doaj.org-article:2dd0639c801349db86926264b14513e22021-12-02T16:06:34ZOrbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber10.1038/s41598-017-01201-92045-2322https://doaj.org/article/2dd0639c801349db86926264b14513e22017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01201-9https://doaj.org/toc/2045-2322Abstract We propose and numerically demonstrate a conversion and multicasting scheme of orbital angular momentum (OAM) states by using N-core supermode fiber (NCSF), where the topological charges of converted OAM states mainly depend on the injected OAM state and the number of fiber cores. The conversion efficiency (CE) of the converted OAM states could be optimized by properly designing the fiber structure. Take N = 6 as an example, ~37% CE could be achieved at telecom bands. Moreover, even for a fabricated NCSF, the CE could be dynamically changed by stretching the fiber or by adjusting the refractive index of the fiber cores through external control of the environmental conditions. Meanwhile, OAM multicasting could also be realized in the designed NCSF. The crosstalk between the multicasted OAM channels and their neighboring ones are assessed to be less than −30 dB. The proposed fiber-based OAM conversion and multicasting system is compatible with the existing optical fiber communication systems, showing potential applications in the future.Guang-hao ShaoShao-cheng YanWei LuoGuo-Wei LuYan-qing LuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Guang-hao Shao Shao-cheng Yan Wei Luo Guo-Wei Lu Yan-qing Lu Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber
description	Abstract We propose and numerically demonstrate a conversion and multicasting scheme of orbital angular momentum (OAM) states by using N-core supermode fiber (NCSF), where the topological charges of converted OAM states mainly depend on the injected OAM state and the number of fiber cores. The conversion efficiency (CE) of the converted OAM states could be optimized by properly designing the fiber structure. Take N = 6 as an example, ~37% CE could be achieved at telecom bands. Moreover, even for a fabricated NCSF, the CE could be dynamically changed by stretching the fiber or by adjusting the refractive index of the fiber cores through external control of the environmental conditions. Meanwhile, OAM multicasting could also be realized in the designed NCSF. The crosstalk between the multicasted OAM channels and their neighboring ones are assessed to be less than −30 dB. The proposed fiber-based OAM conversion and multicasting system is compatible with the existing optical fiber communication systems, showing potential applications in the future.
format	article
author	Guang-hao Shao Shao-cheng Yan Wei Luo Guo-Wei Lu Yan-qing Lu
author_facet	Guang-hao Shao Shao-cheng Yan Wei Luo Guo-Wei Lu Yan-qing Lu
author_sort	Guang-hao Shao
title	Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber
title_short	Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber
title_full	Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber
title_fullStr	Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber
title_full_unstemmed	Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber
title_sort	orbital angular momentum (oam) conversion and multicasting using n-core supermode fiber
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/2dd0639c801349db86926264b14513e2
work_keys_str_mv	AT guanghaoshao orbitalangularmomentumoamconversionandmulticastingusingncoresupermodefiber AT shaochengyan orbitalangularmomentumoamconversionandmulticastingusingncoresupermodefiber AT weiluo orbitalangularmomentumoamconversionandmulticastingusingncoresupermodefiber AT guoweilu orbitalangularmomentumoamconversionandmulticastingusingncoresupermodefiber AT yanqinglu orbitalangularmomentumoamconversionandmulticastingusingncoresupermodefiber
_version_	1718384952757714944

Orbital angular momentum (OAM) conversion and multicasting using N-core supermode fiber

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