Publication: Second-order nonlocal effects mitigation in Brillouin optical time-domain analysis sensors by tracking the Brillouin frequency shift profile of the fiber
| dc.contributor.author | Mompó Roselló, Juan José | |
| dc.contributor.author | Iribas Pardo, Haritz | |
| dc.contributor.author | Urricelqui Polvorinos, Javier | |
| 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 | Gobierno de Navarra / Nafarroako Gobernua | es |
| dc.date.accessioned | 2019-04-15T13:45:00Z | |
| dc.date.available | 2019-04-15T13:45:00Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | We report on an additional limitation that has been found in Brillouin optical time-domain analysis (BOTDA) sensors due to the so-called second-order nonlocal effects (NLE). Second-order NLE appear in BOTDA setups that deploy a double probe waves to compensate the transfer of energy between the pump pulse and the probe wave, and are related to a spectral distortion of the pump pulse that leads to measurement errors and an effective limit on the maximum probe power that can be deployed in the sensor. We theoretically and experimentally demonstrate that the techniques that have been presented so far in the literature to compensate second-order NLE are only effective in the case that the Brillouin frequency shift (BFS) along the sensing fiber is uniform. However, this requirement for uniformity is not realistic in real world scenarios in which a variety of fibers with different BFS and subjected to different environmental conditions are typically deployed. Therefore, we demonstrate a new method to mitigate the effects of BFS variation in the BOTDA setups that compensate second-order NLE. This method is based on introducing an additional wavelength modulation to the probe wave so as to track the mean BFS changes along the sensing fiber link. With this method, we demonstrate a BOTDA setup that, without coding, distributed amplification, or any other form of performance enhancement, achieves a sensing length of 120 km with 3-m spatial resolution and 2-MHz measurement precision. Moreover, the setup demonstrates, to our knowledge, the largest probe power ever injected in a BOTDA sensing link. | en |
| dc.description.sponsorship | This work was supported by the Universidad Pública de Navarra, Feder funds and Spanish Ministerio de Economía y Competitividad through the project TEC2013-47264-C2-2-R and TEC2016-76021-C2-1-R. | en |
| dc.format.extent | 13 p. | |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | J. J. Mompó, H. Iribas, J. Urricelqui and A. Loayssa, "Second-Order Nonlocal Effects Mitigation in Brillouin Optical Time-Domain Analysis Sensors by Tracking the Brillouin Frequency Shift Profile of the Fiber," in IEEE Photonics Journal, vol. 9, no. 5, pp. 1-12, Oct. 2017, Art no. 6804312. doi: 10.1109/JPHOT.2017.2748965 | en |
| dc.identifier.doi | 10.1109/JPHOT.2017.2748965 | |
| dc.identifier.issn | 1943-0655 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/32901 | |
| dc.language.iso | eng | en |
| dc.publisher | IEEE | en |
| dc.relation.ispartof | IEEE Photonics Journal, volume 9, no. 5, October 2017 | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//TEC2013-47264-C2-2-R/ES/ | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/ES/1PE/TEC2016-76021 | en |
| dc.relation.publisherversion | https://doi.org/10.1109/JPHOT.2017.2748965 | |
| dc.rights | © 2017 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.subject | Brillouin distributed sensors | en |
| dc.subject | Fiber optics sensors | en |
| dc.subject | Brillouin optical time domain analysis | en |
| dc.title | Second-order nonlocal effects mitigation in Brillouin optical time-domain analysis sensors by tracking the Brillouin frequency shift profile of the fiber | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | Versión publicada / Argitaratu den bertsioa | es |
| dc.type.version | info:eu-repo/semantics/publishedVersion | en |
| dspace.entity.type | Publication | |
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