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dc.creatorUrricelqui Polvorinos, Javieres_ES
dc.creatorSagüés García, Mikeles_ES
dc.creatorLoayssa Lara, Alaynes_ES
dc.date.accessioned2016-11-15T10:02:20Z
dc.date.available2016-11-15T10:02:20Z
dc.date.issued2014
dc.identifier.issn1094-4087
dc.identifier.urihttps://hdl.handle.net/2454/22700
dc.description.abstractWe introduce a novel phasorial differential pulse width pair (PDPP) method for Brillouin optical time domain analysis (BOTDA) sensors that combines spatial resolution enhancement with increased tolerance to non local effects. It is based on the subtraction of the complex time domain traces supplied by a sensor configuration that uses a phase modulated probe wave and RF demodulation. The fundamentals of the technique are first described theoretically and using numerical simulation of the propagating waves. Then, proof of concept experiments demonstrate the measurement of the Brillouin frequency shift distribution over 50 km. The system is shown to withstand large variations of the pump power generated by its interaction with a powerful probe wave along the fiber; hence, highlighting the potential of the PDPP technique to increase the detected signal to noise ratio in long range BOTDA. Moreover, the PDPP is also shown to increase the measurement contrast by allowing the use of relatively long duration pulses while retaining 1 m spatial resolution.en
dc.description.sponsorshipThe authors wish to acknowledge the financial support from the Spanish Ministerio de Ciencia e Innovación through the project TEC2010-20224-C02-01 and from the Universidad Pública de Navarra.en
dc.format.mimetypeapplication/pdfen
dc.language.isoengen
dc.publisherOptical Society of Americaen
dc.relation.ispartofOptics Express, Vol. 22, Issue 14, pp. 17403-17408 (2014)en
dc.rights© 2014 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.en
dc.subjectStimulated Brillouin scatteringen
dc.subjectFiber optics sensorsen
dc.subjectHeterodyneen
dc.subjectBrillouin optical time domain analysisen
dc.titlePhasorial differential pulse-width pair technique for long-range Brillouin optical time-domain analysis sensorsen
dc.typeArtículo / Artikuluaes
dc.typeinfo:eu-repo/semantics/articleen
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónicaes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko eta Elektronikoa Sailaeu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.identifier.doi10.1364/OE.22.017403
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/6PN/TEC2010-20224en
dc.relation.publisherversionhttps://doi.org/10.1364/OE.22.017403
dc.type.versionVersión publicada / Argitaratu den bertsioaes
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.contributor.funderUniversidad Pública de Navarra / Nafarroako Unibertsitate Publikoa


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