Simple BOTDA temperature sensor based on distributed Brillouin Phase-Shift measurements within a Sagnac interferometer

Authors
López Gil, Alexia InésUniversity of Alcalá Author; Angulo Vinuesa, XabierUniversity of Alcalá Author; Domínguez López, AlejandroUniversity of Alcalá Author; Martín López, SoniaUniversity of Alcalá Author; González Herráez, MiguelUniversity of Alcalá Author
Identifiers
Permanent link (URI): http://hdl.handle.net/10017/27678
DOI: 10.1117/12.2192977
ISSN: 0277-786X
ISBN: 978-162841839-2
Publisher
Society of Photo-Optical Instrumentation Engineers (SPIE)
Date
2015-09-28
Affiliation
Universidad de Alcalá. Departamento de Electrónica
Funders
European Commission
Ministerio de Economía y Competitividad
Comunidad de Madrid
Universidad de Alcalá
Bibliographic citation
Alexia López-Gil ; Xabier Angulo-Vinuesa ; Alejandro Dominguez-López ; Sonia Martín-López ; Miguel González-Herráez; "Simple BOTDA temperature sensor based on distributed Brillouin phase-shift measurements within a Sagnac interferometer". Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346L (September 28, 2015).
Keywords
Brillouin optical time domain analysis
Brillouin scattering
Nonlinear optics
Temperature sensor
Project
info:eu-repo/grantAgreement/EC/Interreg Sudoe/SOE3%2FP2%2FP714/EU/Gestión ecológica de pilas de residuos de carbón en combustión/ECOAL-MGT
info:eu-repo/grantAgreement/EC/FP7/307441/EU/Ubiquitous optical FIbre NErves/U-FINE
info:eu-repo/grantAgreement/MINECO//TEC2012-37958-C02-01/ES/TECNOLOGIAS DE SEGURIDAD CIVIL BASADAS EN FIBRA OPTICA/
info:eu-repo/grantAgreement/MINECO/TEC2013-45265-R/ES/DETECCION TEMPRANA DE AMENAZAS PARA INFRAESTRUCTURAS CRITICAS USANDO SISTEMAS DISTRIBUIDOS DE FIBRA OPTICA/
info:eu-repo/grantAgreement/UAH//CCG2014%2FEXP-072
info:eu-repo/grantAgreement/Comunidad de Madrid//S2009%2FMIT2790/ES/Sensores e INstrumentación en tecnologías FOTÓNicas/SINFOTON
Document type
info:eu-repo/semantics/conferenceObject
Version
info:eu-repo/semantics/acceptedVersion
Publisher's version
http://dx.doi.org/10.1117/12.2192977
Rights
Atribución-NoComercial-SinDerivadas 3.0 España
(c) 2015 Society of Photo Optical Instrumentation Engineers
Access rights
info:eu-repo/semantics/openAccess
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Abstract
In this work we demonstrate an extremely simple BOTDA scheme capable of delivering distributed Brillouin Phase Shift measurements along an optical fiber. It is based on exploiting the non-reciprocity of the Stimulated Brillouin Scattering effect. This non-reciprocity is easily characterized by means of a suitably tuned Sagnac Interferometer. The technique is advantageous as, in comparison with previous methods, no complex modulation, no sharp filtering and no highbandwidth detection is needed. Theoretical and experimental proofs of the concept are given.
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