Raman-Assisted Brillouin Distributed Temperature Sensor Over 100 km Featuring 2 m Resolution and 1.2 C Uncertainty
Authors
Angulo Vinuesa, Xabier; Martín López, Sonia; Nuño del Campo, Javier; Corredera, Pedro; Ania Castañón, Juan Diego; [et al.]Identifiers
Permanent link (URI): http://hdl.handle.net/10017/25019DOI: 10.1109/JLT.2011.2168807
ISSN: 0733-8724
Publisher
IEEE
Date
2012-03-02Funders
Ministerio de Ciencia e Innovación
Ministerio de Fomento
Comunidad de Madrid
Bibliographic citation
Journal of Lightwave Technology, 2012, v.30, n.8, pp.1060-1065
Keywords
Brillouin scattering
Raman scattering
Distributed optic fiber sensor
Distributed Raman amplification
Temperature sensor
Project
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/
info:eu-repo/grantAgreement/MIFFO//FOM-07%2F77/ES//
info:eu-repo/grantAgreement//MIFFO/FOM-39%2F08/ES//
info:eu-repo/grantAgreement/CAM//S2009%2FESP1781/ES//FACTOTEM2
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Publisher's version
http://hdl.handle.net/10261/81743Access rights
info:eu-repo/semantics/openAccess
Abstract
Raman assistance in distributed sensors based on Brillouin optical time-domain analysis can significantly extend the measurement distance. In this paper, we have developed a 2 m resolution long-range Brillouin distributed sensor that reaches 100 km using first-order Raman assistance. The estimated uncertainty in temperature discrimination is 1.2 °C, even for the position of worst contrast. The parameters used in the experiment are supported by a simple analytical model of the required values, considering the main limitations of the setup.
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