Heat dynamics in optical ring resonators

We present an analytical model for the dynamical self-heating effect in air-cladded optical microring resonators (ORRs). The spatially and time resolved temperature field is calculated by integrating the corresponding boundary value problem of the heat equation. It turns out that the self-heating am...

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Detalles Bibliográficos
Autores: Dickmann, Walter, Weituschat, Lukas Max, Eisermann, René, Krenek, Stephan, Postigo, Pablo Aitor, Kroker, Stefanie
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/381400
Acceso en línea:http://hdl.handle.net/10261/381400
https://api.elsevier.com/content/abstract/scopus_id/85109789422
Access Level:acceso abierto
Palabra clave:Absorption
Heat equation
Optical ring resonators
Temperature sensing
Thermal modeling
Two-photon absorption
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spelling Heat dynamics in optical ring resonatorsDickmann, WalterWeituschat, Lukas MaxEisermann, RenéKrenek, StephanPostigo, Pablo AitorKroker, StefanieAbsorptionHeat equationOptical ring resonatorsTemperature sensingThermal modelingTwo-photon absorptionWe present an analytical model for the dynamical self-heating effect in air-cladded optical microring resonators (ORRs). The spatially and time resolved temperature field is calculated by integrating the corresponding boundary value problem of the heat equation. It turns out that the self-heating amplitude is approximately proportional to the total absorbed power and anti-proportional to the thermal conductivity of the cladding material. Further, two-photon absorption plays a major role in the heating process, even for moderate input powers, due to the strong light confinement. Heating times are determined to be in the microsecond range and may limit the response time of ORR devices. The explicit formulas for the temperature fields allow a much faster determination of heating properties compared to elaborate finite element simulations. Thus, our model is predestinated for scanning large parameter spaces.This work is funded through the project 17FUN05 “PhotOQuant” within the Programme EMPIR. The EMPIR initiative is co-founded by the European Union’s Horizon 2020 research and innovation program and the EMPIR Participating Countries.Peer reviewedSPIE digital libraryEuropean CommissionPostigo, Pablo Aitor [0000-0002-4672-2020]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/381400https://api.elsevier.com/content/abstract/scopus_id/85109789422reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1117/12.2592552Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3814002026-05-22T06:33:51Z
dc.title.none.fl_str_mv Heat dynamics in optical ring resonators
title Heat dynamics in optical ring resonators
spellingShingle Heat dynamics in optical ring resonators
Dickmann, Walter
Absorption
Heat equation
Optical ring resonators
Temperature sensing
Thermal modeling
Two-photon absorption
title_short Heat dynamics in optical ring resonators
title_full Heat dynamics in optical ring resonators
title_fullStr Heat dynamics in optical ring resonators
title_full_unstemmed Heat dynamics in optical ring resonators
title_sort Heat dynamics in optical ring resonators
dc.creator.none.fl_str_mv Dickmann, Walter
Weituschat, Lukas Max
Eisermann, René
Krenek, Stephan
Postigo, Pablo Aitor
Kroker, Stefanie
author Dickmann, Walter
author_facet Dickmann, Walter
Weituschat, Lukas Max
Eisermann, René
Krenek, Stephan
Postigo, Pablo Aitor
Kroker, Stefanie
author_role author
author2 Weituschat, Lukas Max
Eisermann, René
Krenek, Stephan
Postigo, Pablo Aitor
Kroker, Stefanie
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Postigo, Pablo Aitor [0000-0002-4672-2020]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Absorption
Heat equation
Optical ring resonators
Temperature sensing
Thermal modeling
Two-photon absorption
topic Absorption
Heat equation
Optical ring resonators
Temperature sensing
Thermal modeling
Two-photon absorption
description We present an analytical model for the dynamical self-heating effect in air-cladded optical microring resonators (ORRs). The spatially and time resolved temperature field is calculated by integrating the corresponding boundary value problem of the heat equation. It turns out that the self-heating amplitude is approximately proportional to the total absorbed power and anti-proportional to the thermal conductivity of the cladding material. Further, two-photon absorption plays a major role in the heating process, even for moderate input powers, due to the strong light confinement. Heating times are determined to be in the microsecond range and may limit the response time of ORR devices. The explicit formulas for the temperature fields allow a much faster determination of heating properties compared to elaborate finite element simulations. Thus, our model is predestinated for scanning large parameter spaces.
publishDate 2021
dc.date.none.fl_str_mv 2021
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/381400
https://api.elsevier.com/content/abstract/scopus_id/85109789422
url http://hdl.handle.net/10261/381400
https://api.elsevier.com/content/abstract/scopus_id/85109789422
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1117/12.2592552
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SPIE digital library
publisher.none.fl_str_mv SPIE digital library
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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