Vortex solitons in twisted circular waveguide arrays

We address the formation of topological states in twisted circular waveguide arrays and find that twisting leads to important differences of the fundamental properties of new vortex solitons with opposite topological charges that arise in the nonlinear regime. We find that such system features the r...

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Autores: Dong, Liangwei, Kartashov, Yaroslav V., Torner Sabata, Lluís|||0000-0002-6491-4210, Ferrando, Albert
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/376512
Acceso en línea:https://hdl.handle.net/2117/376512
https://dx.doi.org/10.1103/PhysRevLett.129.123903
Access Level:acceso abierto
Palabra clave:Solitons
Wave guides -- Mathematical models
Applications of soft matter
Waveguides
Waveguide arrays
Guies d'ones -- Models matemàtics
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
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spelling Vortex solitons in twisted circular waveguide arraysDong, LiangweiKartashov, Yaroslav V.Torner Sabata, Lluís|||0000-0002-6491-4210Ferrando, AlbertSolitonsWave guides -- Mathematical modelsApplications of soft matterWaveguidesWaveguide arraysSolitonsGuies d'ones -- Models matemàticsÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::FotònicaWe address the formation of topological states in twisted circular waveguide arrays and find that twisting leads to important differences of the fundamental properties of new vortex solitons with opposite topological charges that arise in the nonlinear regime. We find that such system features the rare property that clockwise and counterclockwise vortex states are nonequivalent. Focusing on arrays with C6v discrete rotation symmetry, we find that a longitudinal twist stabilizes the vortex solitons with the lowest topological charges m=±1, which are always unstable in untwisted arrays with the same symmetry. Twisting also leads to the appearance of instability domains for otherwise stable solitons with m=±2 and generates vortex modes with topological charges m=±3 that are forbidden in untwisted arrays. By and large, we establish a rigorous relation between the discrete rotation symmetry of the array, its twist direction, and the possible soliton topological charges.Y.V.K., A.F. and L.T. acknowledge grant CEX2019-000910-S funded by MCIN/AEI/ 10.13039/501100011033, Fundació Cellex, Fundació Mir-Puig, and Generalitat de Catalunya (CERCA, AGAUR). A.F. thanks the support of MCIN of Spain through the project PID2020-120484RB-I00 and Generalitat Valenciana, Spain (grant PROMETEO/2021/082).Peer ReviewedAmerican Institute of Physics (AIP)20222022-09-1320222022-11-17journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/376512https://dx.doi.org/10.1103/PhysRevLett.129.123903reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3765122026-05-27T15:37:01Z
dc.title.none.fl_str_mv Vortex solitons in twisted circular waveguide arrays
title Vortex solitons in twisted circular waveguide arrays
spellingShingle Vortex solitons in twisted circular waveguide arrays
Dong, Liangwei
Solitons
Wave guides -- Mathematical models
Applications of soft matter
Waveguides
Waveguide arrays
Solitons
Guies d'ones -- Models matemàtics
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
title_short Vortex solitons in twisted circular waveguide arrays
title_full Vortex solitons in twisted circular waveguide arrays
title_fullStr Vortex solitons in twisted circular waveguide arrays
title_full_unstemmed Vortex solitons in twisted circular waveguide arrays
title_sort Vortex solitons in twisted circular waveguide arrays
dc.creator.none.fl_str_mv Dong, Liangwei
Kartashov, Yaroslav V.
Torner Sabata, Lluís|||0000-0002-6491-4210
Ferrando, Albert
author Dong, Liangwei
author_facet Dong, Liangwei
Kartashov, Yaroslav V.
Torner Sabata, Lluís|||0000-0002-6491-4210
Ferrando, Albert
author_role author
author2 Kartashov, Yaroslav V.
Torner Sabata, Lluís|||0000-0002-6491-4210
Ferrando, Albert
author2_role author
author
author
dc.subject.none.fl_str_mv Solitons
Wave guides -- Mathematical models
Applications of soft matter
Waveguides
Waveguide arrays
Solitons
Guies d'ones -- Models matemàtics
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
topic Solitons
Wave guides -- Mathematical models
Applications of soft matter
Waveguides
Waveguide arrays
Solitons
Guies d'ones -- Models matemàtics
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
description We address the formation of topological states in twisted circular waveguide arrays and find that twisting leads to important differences of the fundamental properties of new vortex solitons with opposite topological charges that arise in the nonlinear regime. We find that such system features the rare property that clockwise and counterclockwise vortex states are nonequivalent. Focusing on arrays with C6v discrete rotation symmetry, we find that a longitudinal twist stabilizes the vortex solitons with the lowest topological charges m=±1, which are always unstable in untwisted arrays with the same symmetry. Twisting also leads to the appearance of instability domains for otherwise stable solitons with m=±2 and generates vortex modes with topological charges m=±3 that are forbidden in untwisted arrays. By and large, we establish a rigorous relation between the discrete rotation symmetry of the array, its twist direction, and the possible soliton topological charges.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-09-13
2022
2022-11-17
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/376512
https://dx.doi.org/10.1103/PhysRevLett.129.123903
url https://hdl.handle.net/2117/376512
https://dx.doi.org/10.1103/PhysRevLett.129.123903
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics (AIP)
publisher.none.fl_str_mv American Institute of Physics (AIP)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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