BOTDA measurements tolerant to non-local effects by using a phase-modulated probe wave and RF demodulation
| dc.contributor.author | Urricelqui Polvorinos, Javier | |
| dc.contributor.author | Sagüés García, Mikel | |
| dc.contributor.author | Loayssa Lara, Alayn | |
| dc.contributor.department | Ingeniería Eléctrica y Electrónica | es_ES |
| dc.contributor.department | Ingeniaritza Elektrikoa eta Elektronikoa | eu |
| dc.contributor.funder | Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa | es |
| dc.date.accessioned | 2016-11-15T09:56:50Z | |
| dc.date.available | 2016-11-15T09:56:50Z | |
| dc.date.issued | 2013 | |
| dc.description.abstract | We demonstrate a Brillouin optical time domain analysis sensor based on a phase modulated probe wave and RF demodulation that provides measurements tolerant to frequency dependent variations of the pump pulse power induced by non local effects. The tolerance to non local effects is based on the special characteristics of the detection process, which provides an RF phase shift signal that is largely independent of the Brillouin gain magnitude. Proof of concept experiments performed over a 20 km long fiber demonstrate that the measured RF phase shift spectrum remains unaltered for large frequency dependent deformations of the pump pulse power. Therefore, it allows the use of a higher optical power of the probe wave, which leads to an enhancement of the detected signal to noise ratio. This can be used to extend the sensing distance, to improve the accuracy of the Brillouin frequency shift measurements, and to reduce the measurement time. | en |
| dc.description.sponsorship | The authors wish to acknowledge the financial support from the Spanish Ministerio de Educación y Ciencia through the project TEC2010-20224-C02-01, from the Spanish Ministerio de Economía y Competitividad through the project IPT-2011-12-920000 and from the Universidad Pública de Navarra. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | 10.1364/OE.21.017186 | |
| dc.identifier.issn | 1094-4087 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/22699 | |
| dc.language.iso | eng | en |
| dc.publisher | Optical Society of America | en |
| dc.relation.ispartof | Optics Express, Vol. 21, Issue 14, pp. 17186-17194 (2013) | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/MICINN//TEC2010-20224-C02-01/ES/ | |
| dc.relation.publisherversion | https://doi.org/10.1364/OE.21.017186 | |
| dc.rights | © 2013 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.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.subject | Stimulated Brillouin scattering | en |
| dc.subject | Fiber optics sensors | en |
| dc.subject | Heterodyne | en |
| dc.subject | Brillouin distributed sensors | en |
| dc.subject | Brillouin optical time domain analysis | en |
| dc.title | BOTDA measurements tolerant to non-local effects by using a phase-modulated probe wave and RF demodulation | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
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| relation.isAuthorOfPublication | c694736c-d2bb-49e5-bf4f-496c976fbeff | |
| relation.isAuthorOfPublication.latestForDiscovery | 675e3377-e004-4201-bdc3-064cc4234e82 |