Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers

[EN] We report a novel multi-cavity Vernier optoelectronic oscillator (OEO) approach enabled by dispersion-engineered heterogeneous multicore fibers (MCFs) to achieve broadband tunability, ultra-low phase noise, and high temporal stability. By using the Central Limit Theorem, we theoretically demons...

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Autores: García-Cortijo, Sergi|||0000-0002-7237-9457, Gasulla Mestre, Ivana|||0000-0001-8088-7796
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/229237
Acceso en línea:https://riunet.upv.es/handle/10251/229237
Access Level:acceso abierto
Palabra clave:Chromatic dispersion
Multicore fibers
Optoelectronic oscillators (OEO)
Signal processing
Space-division multiplexing
True-time delay lines
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spelling Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore FibersGarcía-Cortijo, Sergi|||0000-0002-7237-9457Gasulla Mestre, Ivana|||0000-0001-8088-7796Chromatic dispersionMulticore fibersOptoelectronic oscillators (OEO)Signal processingSpace-division multiplexingTrue-time delay lines[EN] We report a novel multi-cavity Vernier optoelectronic oscillator (OEO) approach enabled by dispersion-engineered heterogeneous multicore fibers (MCFs) to achieve broadband tunability, ultra-low phase noise, and high temporal stability. By using the Central Limit Theorem, we theoretically demonstrate that the temporal stability of the oscillation frequency improves as the number of cavities increases, with the frequency drift variance scaling inversely with the number of cavities. This key insight transcends Vernier-specific implementations, offering a universal framework for enhancing stability in multi-cavity OEOs of varying topologies. Experimental validation using a custom-fabricated 7-core MCF demonstrates up to a 75% reduction in the frequency drift standard deviation for a 7-cavity OEO compared to a dual-cavity configuration, alongside an average phase noise level of approximately -120 dBc/Hz at a 10-kHz offset. By exploiting the phase-to-intensity modulation conversion to implement a broadband radiofrequency filtering response, we reach wideband optically tunable oscillation frequency from 10 to 18 GHz enabled by the MCF dispersion characteristics. These results position MCF-based multi-cavity Vernier OEOs as a versatile platform for next-generation radar, communications, and sensing systems demanding high spectral purity, long-term operational stability, and fast wideband reconfigurability.This work was supported in part by the Spanish MICIU/AEI under project PID2023-152314OB-100, in part by Generalitat Valenciana under Project PROMETEO/2021/15 , and in part by Universitat Politecnica de Valencia PAID-10-21 fellowship for S. Garcia.Institute of Electrical and Electronics EngineersEscuela Técnica Superior de Ingeniería de TelecomunicaciónDepartamento de ComunicacionesInstituto Universitario de Telecomunicación y Aplicaciones MultimediaEscuela Politécnica Superior de GandiaGeneralitat ValencianaAgencia Estatal de InvestigaciónUniversitat Politècnica de ValènciaRepositorio Institucional de la Universitat Politècnica de València Riunet20252025-10-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/229237reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2023-152314OB-I00 INNOVATIVE SPACE-DIVISION MULTIPLEXING FIBER DEVICES UNLEASHED FOR SIGNAL PROCESSING AND SENSINGUniversitat Politècnica de València https://doi.org/10.13039/501100004233 PAID-10-21Generalitat Valenciana https://doi.org/10.13039/501100003359 PROMETEO%2F2021%2F015open accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento (by)http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2292372026-06-13T07:49:27Z
dc.title.none.fl_str_mv Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers
title Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers
spellingShingle Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers
García-Cortijo, Sergi|||0000-0002-7237-9457
Chromatic dispersion
Multicore fibers
Optoelectronic oscillators (OEO)
Signal processing
Space-division multiplexing
True-time delay lines
title_short Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers
title_full Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers
title_fullStr Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers
title_full_unstemmed Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers
title_sort Long-Term Stability Enhancement in Multi-Cavity Optoelectronic Oscillators via Multicore Fibers
dc.creator.none.fl_str_mv García-Cortijo, Sergi|||0000-0002-7237-9457
Gasulla Mestre, Ivana|||0000-0001-8088-7796
author García-Cortijo, Sergi|||0000-0002-7237-9457
author_facet García-Cortijo, Sergi|||0000-0002-7237-9457
Gasulla Mestre, Ivana|||0000-0001-8088-7796
author_role author
author2 Gasulla Mestre, Ivana|||0000-0001-8088-7796
author2_role author
dc.contributor.none.fl_str_mv Escuela Técnica Superior de Ingeniería de Telecomunicación
Departamento de Comunicaciones
Instituto Universitario de Telecomunicación y Aplicaciones Multimedia
Escuela Politécnica Superior de Gandia
Generalitat Valenciana
Agencia Estatal de Investigación
Universitat Politècnica de València
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Chromatic dispersion
Multicore fibers
Optoelectronic oscillators (OEO)
Signal processing
Space-division multiplexing
True-time delay lines
topic Chromatic dispersion
Multicore fibers
Optoelectronic oscillators (OEO)
Signal processing
Space-division multiplexing
True-time delay lines
description [EN] We report a novel multi-cavity Vernier optoelectronic oscillator (OEO) approach enabled by dispersion-engineered heterogeneous multicore fibers (MCFs) to achieve broadband tunability, ultra-low phase noise, and high temporal stability. By using the Central Limit Theorem, we theoretically demonstrate that the temporal stability of the oscillation frequency improves as the number of cavities increases, with the frequency drift variance scaling inversely with the number of cavities. This key insight transcends Vernier-specific implementations, offering a universal framework for enhancing stability in multi-cavity OEOs of varying topologies. Experimental validation using a custom-fabricated 7-core MCF demonstrates up to a 75% reduction in the frequency drift standard deviation for a 7-cavity OEO compared to a dual-cavity configuration, alongside an average phase noise level of approximately -120 dBc/Hz at a 10-kHz offset. By exploiting the phase-to-intensity modulation conversion to implement a broadband radiofrequency filtering response, we reach wideband optically tunable oscillation frequency from 10 to 18 GHz enabled by the MCF dispersion characteristics. These results position MCF-based multi-cavity Vernier OEOs as a versatile platform for next-generation radar, communications, and sensing systems demanding high spectral purity, long-term operational stability, and fast wideband reconfigurability.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-10-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/229237
url https://riunet.upv.es/handle/10251/229237
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2023-152314OB-I00 INNOVATIVE SPACE-DIVISION MULTIPLEXING FIBER DEVICES UNLEASHED FOR SIGNAL PROCESSING AND SENSING
Universitat Politècnica de València https://doi.org/10.13039/501100004233 PAID-10-21
Generalitat Valenciana https://doi.org/10.13039/501100003359 PROMETEO%2F2021%2F015
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
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
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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