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Sensor distribuido Brillouin de deformación y temperatura en fibra óptica asistido con Raman para aplicaciones de ingeniería civil

AuthorsRodríguez-Barrios, Félix; Martín-López, Sonia; Carrasco-Sanz, Ana; Corredera, Pedro ; Fuentes-Hernández, Eduardo; Hernanz, María Luisa ; González Herráez, Miguel
Keywordsdistributed fiber-optic sensor
scattering Brillouin
scattering Raman
Issue Date2009
CitationActas de la 6ª Reunión Española de Optoelectrónica. OPTOEL '09
AbstractIn this work an experimental development of a distributed Brillouin sensor in optical fiber, for strain and temperature detection in civil infrastructures, is presented. With this configuration it is possible to get 5 m of spatial resolution and the possibility of sensing up to 50 km of standard optical fiber with an acceptable contrast. Investigation of a method to extend-range distributed temperature and strain sensor based on detection of the Brillouin frequency shift combined with counter-propagating Raman amplification has been realized. 50-km-range of standard-single-mode silica fiber (SSMF) has been sensed with a greater signal contrast.
Appears in Collections:(IFA) Comunicaciones congresos
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