Optical characterization of strain sensing cables for Brillouin optical time domain analysis

Two innovative optical fiber cable layouts designed to improve strain measurement accuracy for Brillouin Optical Time Domain Analysis (BOTDA) sensors through improved strain transfer efficiency are presented and discussed. Swept Wavelength Interferometry (SWI) is used to experimentally evaluate thei...

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Main Authors: Falcetelli Francesco, Bastianini Filippo, Bocheński Pawel, Rossi Leonardo, Di Sante Raffaella, Bolognini Gabriele
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Series:Journal of the European Optical Society-Rapid Publications
Subjects:
Online Access:https://jeos.edpsciences.org/articles/jeos/full_html/2022/01/jeos20220010/jeos20220010.html
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author Falcetelli Francesco
Bastianini Filippo
Bocheński Pawel
Rossi Leonardo
Di Sante Raffaella
Bolognini Gabriele
author_facet Falcetelli Francesco
Bastianini Filippo
Bocheński Pawel
Rossi Leonardo
Di Sante Raffaella
Bolognini Gabriele
author_sort Falcetelli Francesco
collection DOAJ
description Two innovative optical fiber cable layouts designed to improve strain measurement accuracy for Brillouin Optical Time Domain Analysis (BOTDA) sensors through improved strain transfer efficiency are presented and discussed. Swept Wavelength Interferometry (SWI) is used to experimentally evaluate their performance alongside analytical models and numerical simulation through Finite Element Method (FEM). The results show good agreement between the different methods and show that the second sensing cable design presents good features to minimize the mismatch between measured and actual strain. Finally, the strain response of both strain and temperature sensing cables of this design are evaluated, showing that their difference in response is reliable enough to allow temperature compensation.
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spelling doaj.art-c3dce53e48dc4650a82298357039f8a92023-01-17T09:00:55ZengEDP SciencesJournal of the European Optical Society-Rapid Publications1990-25732022-01-01181710.1051/jeos/2022007jeos20220010Optical characterization of strain sensing cables for Brillouin optical time domain analysisFalcetelli Francesco0Bastianini Filippo1Bocheński Pawel2Rossi Leonardo3Di Sante Raffaella4Bolognini Gabriele5Department of Industrial Engineering, University of BolognaSestosensor SRL, R&D DepartmentFibrain Sp. Z.o.o.Consiglio Nazionale delle Ricerche, IMM InstituteDepartment of Industrial Engineering, University of BolognaConsiglio Nazionale delle Ricerche, IMM InstituteTwo innovative optical fiber cable layouts designed to improve strain measurement accuracy for Brillouin Optical Time Domain Analysis (BOTDA) sensors through improved strain transfer efficiency are presented and discussed. Swept Wavelength Interferometry (SWI) is used to experimentally evaluate their performance alongside analytical models and numerical simulation through Finite Element Method (FEM). The results show good agreement between the different methods and show that the second sensing cable design presents good features to minimize the mismatch between measured and actual strain. Finally, the strain response of both strain and temperature sensing cables of this design are evaluated, showing that their difference in response is reliable enough to allow temperature compensation.https://jeos.edpsciences.org/articles/jeos/full_html/2022/01/jeos20220010/jeos20220010.htmlbrillouin scatteringoptical fiber sensorsfiber ring lasersstrain transferstructural health monitoring
spellingShingle Falcetelli Francesco
Bastianini Filippo
Bocheński Pawel
Rossi Leonardo
Di Sante Raffaella
Bolognini Gabriele
Optical characterization of strain sensing cables for Brillouin optical time domain analysis
Journal of the European Optical Society-Rapid Publications
brillouin scattering
optical fiber sensors
fiber ring lasers
strain transfer
structural health monitoring
title Optical characterization of strain sensing cables for Brillouin optical time domain analysis
title_full Optical characterization of strain sensing cables for Brillouin optical time domain analysis
title_fullStr Optical characterization of strain sensing cables for Brillouin optical time domain analysis
title_full_unstemmed Optical characterization of strain sensing cables for Brillouin optical time domain analysis
title_short Optical characterization of strain sensing cables for Brillouin optical time domain analysis
title_sort optical characterization of strain sensing cables for brillouin optical time domain analysis
topic brillouin scattering
optical fiber sensors
fiber ring lasers
strain transfer
structural health monitoring
url https://jeos.edpsciences.org/articles/jeos/full_html/2022/01/jeos20220010/jeos20220010.html
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AT bastianinifilippo opticalcharacterizationofstrainsensingcablesforbrillouinopticaltimedomainanalysis
AT bochenskipawel opticalcharacterizationofstrainsensingcablesforbrillouinopticaltimedomainanalysis
AT rossileonardo opticalcharacterizationofstrainsensingcablesforbrillouinopticaltimedomainanalysis
AT disanteraffaella opticalcharacterizationofstrainsensingcablesforbrillouinopticaltimedomainanalysis
AT bologninigabriele opticalcharacterizationofstrainsensingcablesforbrillouinopticaltimedomainanalysis