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Tunable sensitivity in long period fiber gratings during mode transition with low refractive index intermediate layer

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dc.contributor.authorDel Villar, Ignacio
dc.contributor.authorMontoya-Cardona, Jorgees_ES
dc.contributor.authorImas González, José Javier
dc.contributor.authorReyes-Vera, Erickes_ES
dc.contributor.authorRuiz Zamarreño, Carlos
dc.contributor.authorMatías Maestro, Ignacio
dc.contributor.authorCruz, José Luises_ES
dc.contributor.departmentIngeniería Eléctrica, Electrónica y de Comunicaciónes_ES
dc.contributor.departmentInstitute of Smart Cities - ISCen
dc.contributor.departmentIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzareneu
dc.date.accessioned2023-05-11T15:34:29Z
dc.date.available2023-05-11T15:34:29Z
dc.date.issued2022
dc.date.updated2023-05-11T15:22:20Z
dc.description.abstractDouble-clad fibers where the second cladding has a lower refractive index than the first cladding, prove to be ideal structures for potentiating and tuning the sensitivity in long-period fiber gratings (LPFGs) operating in mode transition. When a thin film is deposited on the optical fiber, the second cladding performs acts as a barrier that initially prevents the transition to guidance in the thin film of one of the modes guided in the first cladding. Finally, the transition to guidance occurs with a sensitivity increase, in analogy to the tunnel effect observed in semiconductors. This improvement has been demonstrated both as a function of the thin film thickness and the surrounding medium refractive index, with enhancement factors of 4 and 2, respectively. This idea reinforces the performance of LPFGs, adding a new degree of freedom to the mode transition and the dispersion turning point phenomena. Moreover, the control of the variation of the effective index of cladding modes could be applied in other structures, such as tilted-fiber gratings or evanescent wave sensors.en
dc.description.sponsorshipWe acknowledge the support of the Agencia Estatal de Investigación of Spain (PID2019-106231RB-I00); the Spanish Ministry of Universities (FPU18/03087 grant); European Commission (H2020 - MSCA-RISE-2019-872049); Generalitat Valenciana (IDIFEDER/2020/064,PROMETEO/2019/048), and the Instituto Tecnologico Metropolitano, project P21101.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationVillar, I. D., Montoya-Cardona, J., Imas, J., Reyes-Vera, E., Zamarreno, C. R., Matias, I. R., Cruz, J. L. (2022) Tunable sensitivity in long period fiber gratings during mode transition with low refractive index intermediate layer. Journal of Lightwave Technology, 1-10. https://doi.org/10.1109/JLT.2022.3226800.en
dc.identifier.doi10.1109/JLT.2022.3226800
dc.identifier.issn0733-8724
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/45263
dc.language.isoengen
dc.publisherIEEEen
dc.relation.ispartofJournal of Lightwave Technology, 2022en
dc.relation.projectIDinfo:eu-repo/grantAgreement/European Commission/Horizon 2020 Framework Programme/872049en
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-106231RB-I00/ES/en
dc.relation.projectIDinfo:eu-repo/grantAgreement/MICIU//FPU18%2F03087en
dc.relation.publisherversionhttps://doi.org/10.1109/JLT.2022.3226800
dc.rights© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.subjectLong period fiber grating (LPFG)en
dc.subjectSensorsen
dc.subjectThin filmen
dc.subjectMode transitionen
dc.subjectEtchingen
dc.subjectTunnel effecten
dc.titleTunable sensitivity in long period fiber gratings during mode transition with low refractive index intermediate layeren
dc.typeArtículo / Artikuluaes
dc.typeinfo:eu-repo/semantics/articleen
dc.type.versionVersión aceptada / Onetsi den bertsioaes
dc.type.versioninfo:eu-repo/semantics/acceptedVersionen
dspace.entity.typePublication
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