Raman-assisted Brillouin optical time-domain analysis with sub-meter resolution over 100 km

Authors
Angulo Vinuesa, XabierUniversity of Alcalá Author; Martín López, SoniaUniversity of Alcalá Author; Corredera, Pedro; González Herráez, MiguelUniversity of Alcalá Author
Identifiers
Permanent link (URI): http://hdl.handle.net/10017/24937
DOI: 10.1364/OE.20.012147
Publisher
Optical Society of America
Date
2012-05-14
Affiliation
Universidad de Alcalá. Departamento de Electrónica
Funders
Comunidad de Madrid
Ministerio de Ciencia e Innovación
Bibliographic citation
X. Angulo-Vinuesa, S. Martin-Lopez, P. Corredera, and M. Gonzalez-Herraez, "Raman-assisted Brillouin optical time-domain analysis with sub-meter resolution over 100 km," Opt. Express 20, 2012, 12147-12154
Project
info:eu-repo/grantAgreement/Comunidad de Madrid//S2009%2FESP1781/ES//FACTOTEM2
info:eu-repo/grantAgreement/MICINN//TEC2009-14423-C02-01/ES/Aplicacion Del Laser Femto Fibre Comb A La Metrologia De Frecuencias Para Comunicaciones Opticas/
info:eu-repo/grantAgreement/MICINN//TEC2009-14423-C02-02/ES/Aplicacion Del Laser Femtocomb Al Estudio De Estructuras Semiconductoras Para Comunicaciones Opticas/
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Access rights
info:eu-repo/semantics/openAccess
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Abstract
Sub-meter resolution in long-distance Brillouin Optical Time Domain Analysis (BOTDA) cannot be trivially achieved due to several issues including: resolution-uncertainty trade-offs, self-phase modulation, fiber attenuation, depletion, etc. In this paper we show that combining Raman assistance, differential pulse-width pair (DPP) measurements and a novel numerical de-noising procedure, we could obtain sub-meter resolution Brillouin optical time-domain analysis over a range of 100 km. We successfully demonstrate the detection of a 0.5 meter hot-spot in the position of worst contrast along the fiber.
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