Publication:
Compensation of nonlocal effects induced by the extinction ratio of pump pulses in Brillouin optical time-domain analysis sensors

dc.contributor.authorMariƱelarena Ollacarizqueta, Jon
dc.contributor.authorIribas Pardo, Haritz
dc.contributor.authorUrricelqui Polvorinos, Javier
dc.contributor.authorLoayssa Lara, Alayn
dc.contributor.departmentIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzareneu
dc.contributor.departmentInstitute of Smart Cities - ISCen
dc.contributor.departmentIngenierĆ­a ElĆ©ctrica, ElectrĆ³nica y de ComunicaciĆ³nes_ES
dc.contributor.funderUniversidad PĆŗblica de Navarra / Nafarroako Unibertsitate Publikoaes
dc.date.accessioned2019-04-17T07:57:01Z
dc.date.available2019-04-17T07:57:01Z
dc.date.issued2019
dc.description.abstractWe demonstrate a technique to compensate the nonlocal effects that appear in Brillouin optical time-domain analysis sensors when pump pulses with limited extinction ratio are deployed. These recently discovered nonlocal effects are originated in the interaction between the probe wave and the pulse pedestal. Hence, their compensation method is based on deploying a modulation (dithering) of the optical frequency of the probe and pulse pedestal waves that provides a reduction of the effective interaction length between them. This is implemented by taking advantage of the chirp associated to the direct current modulation of a semiconductor laser used as common source for both waves. The net effect of this procedure is that the probe and pulse pedestal waves display efficient Brillouin interaction just at correlation peaks along the fiber where the frequency difference between both waves remains constant. Proof-of-concept experiments in a 25-km sensing link demonstrate the performance of the technique, where large errors of more than 10 MHz in the measurement of the Brillouin frequency shift are completely compensated by introducing a sinusoidal dithering to the laser source.en
dc.description.sponsorshipProject TEC2016-76021-C2-1-R (AEI/FEDER,UE); Universidad PĆŗblica de Navarra.en
dc.format.extent10 p.
dc.format.mimetypeapplication/pdfen
dc.identifier.doi10.1364/OE.27.006310
dc.identifier.issn1094-4087 (Electronic)
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/32903
dc.language.isoengen
dc.publisherOptical Society of Americaen
dc.relation.ispartofOptics Express, Vol. 27, Issue 5, pp. 6310-6319 (2019)en
dc.relation.projectIDinfo:eu-repo/grantAgreement/ES/1PE/TEC2016-76021en
dc.relation.publisherversionhttps://doi.org/10.1364/OE.27.006310
dc.rightsĀ© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.subjectBrillouin distributed sensorsen
dc.subjectBrillouin optical time domain analysisen
dc.subjectFiber optics sensorsen
dc.titleCompensation of nonlocal effects induced by the extinction ratio of pump pulses in Brillouin optical time-domain analysis sensorsen
dc.typeinfo:eu-repo/semantics/article
dc.type.versionVersiĆ³n publicada / Argitaratu den bertsioaes
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dspace.entity.typePublication
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relation.isAuthorOfPublicatione09abc16-c9c1-4f39-9cde-be7b725230f7
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relation.isAuthorOfPublicationc694736c-d2bb-49e5-bf4f-496c976fbeff
relation.isAuthorOfPublication.latestForDiscovery414ee1cb-f75e-4aa3-994f-e0728b772dc3

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