Effects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers

Based on the coupling mode theory and numerical simulation, intramode-group coupling in orbital angular momentum (OAM) fibers with elliptical deformation is analyzed in depth. The elliptical deformation not only introduces a time delay difference between even and odd modes of the same high-order vec...

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Autores principales:	Hu Zhang, Hui Li, Xiaoguang Zhang, Jingxuan Yang, Ze Chen, Lixia Xi, Wenbo Zhang, Xianfeng Tang
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2022
Materias:	Optical fiber communication mode division multiplexing (MDM) orbital angular momentum (OAM) mode coupling Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/35f975c044b349c0b761793c5f7c8a17
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spelling	oai:doaj.org-article:35f975c044b349c0b761793c5f7c8a172021-11-19T00:00:08ZEffects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers1943-065510.1109/JPHOT.2021.3122794https://doaj.org/article/35f975c044b349c0b761793c5f7c8a172022-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9591358/https://doaj.org/toc/1943-0655Based on the coupling mode theory and numerical simulation, intramode-group coupling in orbital angular momentum (OAM) fibers with elliptical deformation is analyzed in depth. The elliptical deformation not only introduces a time delay difference between even and odd modes of the same high-order vector mode but also destroys the structure of the high-order vector modes; the structural damage depends on the strength of the elliptical deformation. When the elliptical deformation is relatively small, the structural damage of high-order vector modes can be ignored and coupling can be thought as occurring only between two OAM modes composed of the same high-order vector mode. While the elliptical deformation becomes larger, the structural damage cannot be ignored, coupling appears among four OAM modes in the same OAM mode group, and the coupling between two OAM modes composed of the same high-order vector mode is more serious. The results will pave the way for the establishment of accurate propagation models and the optimization of the OAM fiber design.Hu ZhangHui LiXiaoguang ZhangJingxuan YangZe ChenLixia XiWenbo ZhangXianfeng TangIEEEarticleOptical fiber communicationmode division multiplexing (MDM)orbital angular momentum (OAM)mode couplingApplied optics. PhotonicsTA1501-1820Optics. LightQC350-467ENIEEE Photonics Journal, Vol 14, Iss 1, Pp 1-9 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Optical fiber communication mode division multiplexing (MDM) orbital angular momentum (OAM) mode coupling Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
spellingShingle	Optical fiber communication mode division multiplexing (MDM) orbital angular momentum (OAM) mode coupling Applied optics. Photonics TA1501-1820 Optics. Light QC350-467 Hu Zhang Hui Li Xiaoguang Zhang Jingxuan Yang Ze Chen Lixia Xi Wenbo Zhang Xianfeng Tang Effects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers
description	Based on the coupling mode theory and numerical simulation, intramode-group coupling in orbital angular momentum (OAM) fibers with elliptical deformation is analyzed in depth. The elliptical deformation not only introduces a time delay difference between even and odd modes of the same high-order vector mode but also destroys the structure of the high-order vector modes; the structural damage depends on the strength of the elliptical deformation. When the elliptical deformation is relatively small, the structural damage of high-order vector modes can be ignored and coupling can be thought as occurring only between two OAM modes composed of the same high-order vector mode. While the elliptical deformation becomes larger, the structural damage cannot be ignored, coupling appears among four OAM modes in the same OAM mode group, and the coupling between two OAM modes composed of the same high-order vector mode is more serious. The results will pave the way for the establishment of accurate propagation models and the optimization of the OAM fiber design.
format	article
author	Hu Zhang Hui Li Xiaoguang Zhang Jingxuan Yang Ze Chen Lixia Xi Wenbo Zhang Xianfeng Tang
author_facet	Hu Zhang Hui Li Xiaoguang Zhang Jingxuan Yang Ze Chen Lixia Xi Wenbo Zhang Xianfeng Tang
author_sort	Hu Zhang
title	Effects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers
title_short	Effects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers
title_full	Effects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers
title_fullStr	Effects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers
title_full_unstemmed	Effects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers
title_sort	effects of the intramode-group coupling induced by the elliptical deformation of orbital angular momentum fibers
publisher	IEEE
publishDate	2022
url	https://doaj.org/article/35f975c044b349c0b761793c5f7c8a17
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_version_	1718420661882322944

Effects of the Intramode-Group Coupling Induced by the Elliptical Deformation of Orbital Angular Momentum Fibers

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