Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination

Detalhes bibliográficos
Autor(a) principal: André Delgado Gomes
Data de Publicação: 2017
Outros Autores: Orlando Frazão
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://repositorio.inesctec.pt/handle/123456789/3904
http://dx.doi.org/10.1109/lpt.2017.2735185
Resumo: A compact sensing structure using two distinct optical devices, a microfiber knot resonator and an abrupt taper-based Mach-Zehnder interferometer (MZI), is presented. The device was fabricated using only CO2 laser processing. The transmission spectrum presents two different components with different sensitivities to different physical and chemical parameters. The sensor was characterized in temperature and refractive index. For temperature sensing in water, the MZI component presents a sensitivity of -196 +/- 2 pm/degrees C while the microfiber knot resonator (MKR) component shows a sensitivity of 25.1 +/- 0.9 pm/degrees C, for water temperature variations of 12 degrees C. Sensitivities of 1354 +/- 14 nm/RIU and -43 +/- 4 nm/RIU were achieved for refractive index sensing for the MZI and the MKR components, respectively, in a refractive index range from 1.32823 to 1.33001. The matrix method was used for the simultaneous measurement of temperature and refractive index.
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spelling Microfiber Knot With Taper Interferometer for Temperature and Refractive Index DiscriminationA compact sensing structure using two distinct optical devices, a microfiber knot resonator and an abrupt taper-based Mach-Zehnder interferometer (MZI), is presented. The device was fabricated using only CO2 laser processing. The transmission spectrum presents two different components with different sensitivities to different physical and chemical parameters. The sensor was characterized in temperature and refractive index. For temperature sensing in water, the MZI component presents a sensitivity of -196 +/- 2 pm/degrees C while the microfiber knot resonator (MKR) component shows a sensitivity of 25.1 +/- 0.9 pm/degrees C, for water temperature variations of 12 degrees C. Sensitivities of 1354 +/- 14 nm/RIU and -43 +/- 4 nm/RIU were achieved for refractive index sensing for the MZI and the MKR components, respectively, in a refractive index range from 1.32823 to 1.33001. The matrix method was used for the simultaneous measurement of temperature and refractive index.2017-12-12T11:29:34Z2017-01-01T00:00:00Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://repositorio.inesctec.pt/handle/123456789/3904http://dx.doi.org/10.1109/lpt.2017.2735185engAndré Delgado GomesOrlando Frazãoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-05-15T10:20:29Zoai:repositorio.inesctec.pt:123456789/3904Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:53:13.382375Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination
title Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination
spellingShingle Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination
André Delgado Gomes
title_short Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination
title_full Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination
title_fullStr Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination
title_full_unstemmed Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination
title_sort Microfiber Knot With Taper Interferometer for Temperature and Refractive Index Discrimination
author André Delgado Gomes
author_facet André Delgado Gomes
Orlando Frazão
author_role author
author2 Orlando Frazão
author2_role author
dc.contributor.author.fl_str_mv André Delgado Gomes
Orlando Frazão
description A compact sensing structure using two distinct optical devices, a microfiber knot resonator and an abrupt taper-based Mach-Zehnder interferometer (MZI), is presented. The device was fabricated using only CO2 laser processing. The transmission spectrum presents two different components with different sensitivities to different physical and chemical parameters. The sensor was characterized in temperature and refractive index. For temperature sensing in water, the MZI component presents a sensitivity of -196 +/- 2 pm/degrees C while the microfiber knot resonator (MKR) component shows a sensitivity of 25.1 +/- 0.9 pm/degrees C, for water temperature variations of 12 degrees C. Sensitivities of 1354 +/- 14 nm/RIU and -43 +/- 4 nm/RIU were achieved for refractive index sensing for the MZI and the MKR components, respectively, in a refractive index range from 1.32823 to 1.33001. The matrix method was used for the simultaneous measurement of temperature and refractive index.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-12T11:29:34Z
2017-01-01T00:00:00Z
2017
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.inesctec.pt/handle/123456789/3904
http://dx.doi.org/10.1109/lpt.2017.2735185
url http://repositorio.inesctec.pt/handle/123456789/3904
http://dx.doi.org/10.1109/lpt.2017.2735185
dc.language.iso.fl_str_mv eng
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instacron:RCAAP
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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