dc.contributor.author | Fidalgo Martins, Hugo | |
dc.contributor.author | Martín López, Sonia | |
dc.contributor.author | Corredera, Pedro | |
dc.contributor.author | Filograno, M. L. | |
dc.contributor.author | Frazão, O. | |
dc.contributor.author | González Herráez, Miguel | |
dc.date.accessioned | 2016-10-06T11:59:20Z | |
dc.date.available | 2016-10-06T11:59:20Z | |
dc.date.issued | 2013 | |
dc.identifier.bibliographicCitation | Hugo F. Martins, Sonia Martin-Lopez, Pedro Corredera, Massimo L. Filograno, Orlando Frazão, and Miguel González-Herráez, "Coherent Noise Reduction in High Visibility Phase-Sensitive Optical Time Domain Reflectometer for Distributed Sensing of Ultrasonic Waves," Journal of Lightwave Technology, 2013, Vol. 31, n. 23, 3631-3637. | |
dc.identifier.issn | 0733-8724 | |
dc.identifier.uri | http://hdl.handle.net/10017/26359 | |
dc.description.abstract | Phase-sensitive optical time domain reflectometry (\phi \hbox{OTDR}) is a simple and effective tool allowing the distributed monitoring of vibrations along single-mode fibers. Up to now, \phi {\rm OTDRs} have been used mostly for the measurement of sub-kHz vibrations, normally in the context of intrusion sensing. In this paper, the authors present an experimental and theoretical description of a high-visibility \phi {\rm OTDR} and its performance when used for ultrasonic vibration measurements. The use of a semiconductor optical amplifier in the setup allows to suppress coherent noise and also to improve the spectral response of the pump pulses. These two advantages greatly decrease the detected intra-band noise thus allowing frequency measurements in the limits set by the time of flight of the light pulses while maintaining the simplicity of the scheme, as no post-processing, extremely high coherence lasers or coherent detection methods are required. The sensor was able to measure vibrations of up to 39.5 kHz with a resolution of 5 m over a range which could go up to 1.25 km. This is the first time to our knowledge that a fully distributed measurement of ultrasonic waves was achieved. The statistical behavior of the system was also described theoretically and characterized experimentally | en |
dc.description.sponsorship | European Commission | en |
dc.description.sponsorship | Ministerio de Economía y Competitividad | es_ES |
dc.description.sponsorship | Comunidad de Madrid | es_ES |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | IEEE | en |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | Distributed sensor | en |
dc.subject | Optical fiber sensors | en |
dc.subject | Phase-sensitive OTDR | en |
dc.subject | Vibration measurements | en |
dc.title | Coherent noise reduction in high visibility phase-sensitive optical time domain reflectometer for distributed sensing of ultrasonic waves | en |
dc.type | info:eu-repo/semantics/article | en |
dc.subject.eciencia | Ciencias tecnológicas | es_ES |
dc.subject.eciencia | Electrónica | es_ES |
dc.subject.eciencia | Technology | en |
dc.subject.eciencia | Electronics | en |
dc.contributor.affiliation | Universidad de Alcalá. Departamento de Electrónica | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1109/JLT.2013.2286223 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | en |
dc.identifier.doi | 10.1109/JLT.2013.2286223 | |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/307441/EU/Ubiquitous optical FIbre NErves/U-FINE | en |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//TEC2012-37958-C02-01/ES/TECNOLOGIAS DE SEGURIDAD CIVIL BASADAS EN FIBRA OPTICA/ | en |
dc.relation.projectID | info:eu-repo/grantAgreement/CAM//S2009%2FESP1781/ES//FACTOTEM2 | en |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/Interreg Sudoe/SOE3%2FP2%2FP714/EU/Gestión ecológica de pilas de residuos de carbón en combustión/ECOAL-MGT | en |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//TEC2012-37958-C02-02/ES/TECNOLOGIAS DE FIBRA OPTICA PARA LA SEGURIDAD CIVIL/ | en |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |