Optical fiber interferometer for temperature-independent refractive index measuring over a broad range

The present work relates to manufacturing of a simple interferometric optical fiber refractometer that features broad refractive index measuring range without ambiguity. The device consists of a cylindrical polymer cavity whose shape and dimensions are easily controllable. This in turn allows to con...

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Autores: Flores Bravo, José Ángel, Illarramendi Leturia, María Asunción, Zubia Zaballa, Joseba Andoni, Villatoro Bernardo, Agustín Joel
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/68072
Acceso en línea:http://hdl.handle.net/10810/68072
Access Level:acceso abierto
Palabra clave:optical fiber sensors
Fabry-Perot interferometers
refractometers
refractive index sensors
chemical sensors
polymer cavities
thermo-optic coefficient
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spelling Optical fiber interferometer for temperature-independent refractive index measuring over a broad rangeFlores Bravo, José ÁngelIllarramendi Leturia, María AsunciónZubia Zaballa, Joseba AndoniVillatoro Bernardo, Agustín Joeloptical fiber sensorsFabry-Perot interferometersrefractometersrefractive index sensorschemical sensorspolymer cavitiesthermo-optic coefficientThe present work relates to manufacturing of a simple interferometric optical fiber refractometer that features broad refractive index measuring range without ambiguity. The device consists of a cylindrical polymer cavity whose shape and dimensions are easily controllable. This in turn allows to control the performance of the refractometer. The signal processing is simple; it consists of calculating the amplitude and phase of the fast Fourier transform of the normalized interference spectra. In this manner, the refractive index value of the sample is obtained independently of the temperature. The refractometer can be used to measure the refractive index of liquids or viscous samples and can operate in a broad wavelength range. As an application, we demonstrate the measuring of the refractive index of gels at different temperatures from which the thermo-optic coefficient can be calculated.The authors acknowledge funding support from the Fondo Europeo de Desarrollo Regional (FEDER) and the Ministerio de Economia y Competitividad (Spain) under projects PGC2018-101997-B-I00 and RTI2018-094669-B-C31, and also from the Departamento de Educación del Gobierno Vasco, grants No. IT933-16 and Elkartek KK2019-00101.Elsevier202420242021info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/68072reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MICIU/PGC2018-101997-B-I00/info:eu-repo/grantAgreement/MICIU/RTI2018-094669-B-C31/https://www.sciencedirect.com/science/article/pii/S0030399221000657info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/© 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Atribución 3.0 Españaoai:addi.ehu.eus:10810/680722026-06-18T09:23:17Z
dc.title.none.fl_str_mv Optical fiber interferometer for temperature-independent refractive index measuring over a broad range
title Optical fiber interferometer for temperature-independent refractive index measuring over a broad range
spellingShingle Optical fiber interferometer for temperature-independent refractive index measuring over a broad range
Flores Bravo, José Ángel
optical fiber sensors
Fabry-Perot interferometers
refractometers
refractive index sensors
chemical sensors
polymer cavities
thermo-optic coefficient
title_short Optical fiber interferometer for temperature-independent refractive index measuring over a broad range
title_full Optical fiber interferometer for temperature-independent refractive index measuring over a broad range
title_fullStr Optical fiber interferometer for temperature-independent refractive index measuring over a broad range
title_full_unstemmed Optical fiber interferometer for temperature-independent refractive index measuring over a broad range
title_sort Optical fiber interferometer for temperature-independent refractive index measuring over a broad range
dc.creator.none.fl_str_mv Flores Bravo, José Ángel
Illarramendi Leturia, María Asunción
Zubia Zaballa, Joseba Andoni
Villatoro Bernardo, Agustín Joel
author Flores Bravo, José Ángel
author_facet Flores Bravo, José Ángel
Illarramendi Leturia, María Asunción
Zubia Zaballa, Joseba Andoni
Villatoro Bernardo, Agustín Joel
author_role author
author2 Illarramendi Leturia, María Asunción
Zubia Zaballa, Joseba Andoni
Villatoro Bernardo, Agustín Joel
author2_role author
author
author
dc.subject.none.fl_str_mv optical fiber sensors
Fabry-Perot interferometers
refractometers
refractive index sensors
chemical sensors
polymer cavities
thermo-optic coefficient
topic optical fiber sensors
Fabry-Perot interferometers
refractometers
refractive index sensors
chemical sensors
polymer cavities
thermo-optic coefficient
description The present work relates to manufacturing of a simple interferometric optical fiber refractometer that features broad refractive index measuring range without ambiguity. The device consists of a cylindrical polymer cavity whose shape and dimensions are easily controllable. This in turn allows to control the performance of the refractometer. The signal processing is simple; it consists of calculating the amplitude and phase of the fast Fourier transform of the normalized interference spectra. In this manner, the refractive index value of the sample is obtained independently of the temperature. The refractometer can be used to measure the refractive index of liquids or viscous samples and can operate in a broad wavelength range. As an application, we demonstrate the measuring of the refractive index of gels at different temperatures from which the thermo-optic coefficient can be calculated.
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/68072
url http://hdl.handle.net/10810/68072
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICIU/PGC2018-101997-B-I00/
info:eu-repo/grantAgreement/MICIU/RTI2018-094669-B-C31/
https://www.sciencedirect.com/science/article/pii/S0030399221000657
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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