Pulse coding linearization for Brillouin optical time-domain analysis sensors

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dc.contributor.authorMariƱelarena Ollacarizqueta, Jon
dc.contributor.authorIribas Pardo, Haritz
dc.contributor.authorLoayssa Lara, Alayn
dc.contributor.departmentInstitute of Smart Cities - ISCen
dc.date.accessioned2018-12-28T13:54:44Z
dc.date.available2018-12-28T13:54:44Z
dc.date.issued2018
dc.description.abstractWe introduce a simple method to extend the performance of pulse coding techniques in their application to Brillouin optical time-domain analysis sensors (BOTDA). It is based on applying a simple logarithmic processing on the detected probe wave that compensates the deviation from linearity of the sensor response for long code lengths. The technique ensures that the accumulated effect of a sequence of pulses is equal to the linear addition of the effects of the individual components, which is the essential condition to ensure a correct decoding of the probe gain measurement. We experimentally demonstrate the compensation of the Brillouin frequency shift error induced by the accumulated gain nonlinearity. Furthermore, a proof-of-concept 80 km sensing link within a total 200 km fiber loop demonstrated a better than 2 MHz precision with 2 m spatial resolution.en
dc.format.mimetypeapplication/pdfen
dc.identifier.doi10.1364/OL.43.005607
dc.identifier.issn0146-9592 (Print)
dc.identifier.issn1539-4794 (Electronic)
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/31909
dc.language.isoengen
dc.publisherOptical Society of Americaen
dc.relation.ispartofOptics Letters, vol. 43, issue 22, pp. 5607-5610 (2018)en
dc.relation.publisherversionhttps://doi.org/10.1364/OL.43.005607
dc.rightsĀ© 2018 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.en
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.subjectCodingen
dc.subjectBrillouin scatteringen
dc.subjectDistributed optic fiber sensoren
dc.titlePulse coding linearization for Brillouin optical time-domain analysis sensorsen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublication414ee1cb-f75e-4aa3-994f-e0728b772dc3
relation.isAuthorOfPublicatione09abc16-c9c1-4f39-9cde-be7b725230f7
relation.isAuthorOfPublicationc694736c-d2bb-49e5-bf4f-496c976fbeff
relation.isAuthorOfPublication.latestForDiscovery414ee1cb-f75e-4aa3-994f-e0728b772dc3

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