Phase-shift based BOTDA measurements tolerant to non-local effects
Fecha
2013Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
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10.1117/12.2026094
Resumen
We demonstrate a BOTDA sensor based on the use of the Brillouin phase shift that performs measurements tolerant to non local effects. This technique raises opportunities to increase the distance covered by these sensors and the maximum optical power of the probe wave injected to the fiber. As a result, the system has the potential to increase the SNR achieved at the last meters of the fiber. Proo ...
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We demonstrate a BOTDA sensor based on the use of the Brillouin phase shift that performs measurements tolerant to non local effects. This technique raises opportunities to increase the distance covered by these sensors and the maximum optical power of the probe wave injected to the fiber. As a result, the system has the potential to increase the SNR achieved at the last meters of the fiber. Proof-of-concept experiments demonstrate unaltered measurements of the phase shift spectrum in a 20Km long fiber for large frequency-dependent distortions of the pump pulse. [--]
Materias
Stimulated Brillouin scattering,
Non local effects,
Distributed fiber sensors,
Brillouin phase shift,
BOTDA,
Nonlinear optics
Editor
SPIE
Publicado en
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87943G (May 20, 2013)
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Versión del editor
Entidades Financiadoras
The authors wish to acknowledge financial support from the Spanish Ministerio de Educación y Ciencia through the
project TEC2010-20224-C02-01 and from the Universidad Pública de Navarra.