Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber

Detalhes bibliográficos
Autor(a) principal: P. Mergo
Data de Publicação: 2011
Outros Autores: G. Statkiewicz-Barabach, Joel Pedro Carvalho, Orlando Frazão, J. Olszewski, W. Urbanczyk, José Luís Santos
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/123456789/3276
Resumo: We present a compact in-line fiber interferometric sensor fabricated in a boron doped two-mode highly birefringent microstructured fiber using a CO2 laser. The intermodal interference arises at the fiber output due to coupling between the fundamental and the first order modes occurring at two fiber tapers distant by a few millimeters. The visibility of intermodal interference fringes is modulated by a polarimetric differential signal and varies in response to measurand changes. The proposed interferometer was tested for measurements of the strain and temperature, respectively, in the range of 20-700 °C and 0-17 mstrain. The sensitivity coefficients corresponding to fringe displacement and contrast variations are equal respectively for strain −2:51nm=mstrain and −0:0256 1=mstrain and for temperature 16:7pm=°C and 5:74 × 10−5 1=°C. This allows for simultaneous measurements of the two parameters by interrogation of the visibility and the displacement of interference fringes.
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spelling Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiberWe present a compact in-line fiber interferometric sensor fabricated in a boron doped two-mode highly birefringent microstructured fiber using a CO2 laser. The intermodal interference arises at the fiber output due to coupling between the fundamental and the first order modes occurring at two fiber tapers distant by a few millimeters. The visibility of intermodal interference fringes is modulated by a polarimetric differential signal and varies in response to measurand changes. The proposed interferometer was tested for measurements of the strain and temperature, respectively, in the range of 20-700 °C and 0-17 mstrain. The sensitivity coefficients corresponding to fringe displacement and contrast variations are equal respectively for strain −2:51nm=mstrain and −0:0256 1=mstrain and for temperature 16:7pm=°C and 5:74 × 10−5 1=°C. This allows for simultaneous measurements of the two parameters by interrogation of the visibility and the displacement of interference fringes.2017-11-17T11:53:16Z2011-01-01T00:00:00Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://repositorio.inesctec.pt/handle/123456789/3276engP. MergoG. Statkiewicz-BarabachJoel Pedro CarvalhoOrlando FrazãoJ. OlszewskiW. UrbanczykJosé Luís Santosinfo: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:RCAAP2023-05-15T10:20:45Zoai:repositorio.inesctec.pt:123456789/3276Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:53:34.592652Repositório 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 Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
title Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
spellingShingle Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
P. Mergo
title_short Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
title_full Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
title_fullStr Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
title_full_unstemmed Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
title_sort Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
author P. Mergo
author_facet P. Mergo
G. Statkiewicz-Barabach
Joel Pedro Carvalho
Orlando Frazão
J. Olszewski
W. Urbanczyk
José Luís Santos
author_role author
author2 G. Statkiewicz-Barabach
Joel Pedro Carvalho
Orlando Frazão
J. Olszewski
W. Urbanczyk
José Luís Santos
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv P. Mergo
G. Statkiewicz-Barabach
Joel Pedro Carvalho
Orlando Frazão
J. Olszewski
W. Urbanczyk
José Luís Santos
description We present a compact in-line fiber interferometric sensor fabricated in a boron doped two-mode highly birefringent microstructured fiber using a CO2 laser. The intermodal interference arises at the fiber output due to coupling between the fundamental and the first order modes occurring at two fiber tapers distant by a few millimeters. The visibility of intermodal interference fringes is modulated by a polarimetric differential signal and varies in response to measurand changes. The proposed interferometer was tested for measurements of the strain and temperature, respectively, in the range of 20-700 °C and 0-17 mstrain. The sensitivity coefficients corresponding to fringe displacement and contrast variations are equal respectively for strain −2:51nm=mstrain and −0:0256 1=mstrain and for temperature 16:7pm=°C and 5:74 × 10−5 1=°C. This allows for simultaneous measurements of the two parameters by interrogation of the visibility and the displacement of interference fringes.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01T00:00:00Z
2011
2017-11-17T11:53:16Z
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dc.identifier.uri.fl_str_mv http://repositorio.inesctec.pt/handle/123456789/3276
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dc.language.iso.fl_str_mv eng
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