Brilloun optical time domain analysis sensor assisted by a Brillouin distributed amplifier
Fecha
2015Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
|
10.1117/12.2194981
Resumen
We demonstrate the extension of the measurement range of Brillouin optical time-domain analysis (BOTDA)
sensors using a distributed Brillouin amplifier (DBA). The technique is based on injecting a DBA pump wave in
the fiber to generate an additional Brillouin interaction that amplifies the BOTDA pump pulses. Furthermore,
the differential pulse-width pair method is used to counteract the detrim ...
[++]
We demonstrate the extension of the measurement range of Brillouin optical time-domain analysis (BOTDA)
sensors using a distributed Brillouin amplifier (DBA). The technique is based on injecting a DBA pump wave in
the fiber to generate an additional Brillouin interaction that amplifies the BOTDA pump pulses. Furthermore,
the differential pulse-width pair method is used to counteract the detrimental effects of the DBA amplification
on the temporal shape of the pulses. Experimental proof-of-concept results in a 50-km fiber link demonstrate
full compensation of the fiber’s attenuation with no penalty on the signal-to-noise ratio of the detected probe
wave. [--]
Materias
Brillouin distributed sensors,
Brillouin optical time domain analysis,
Brillouin amplification
Editor
SPIE
Publicado en
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96344U (September 28, 2015)
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 acknowledge support from the Spanish Ministerio de Economa y Competitividad project TEC2013-47264-C2-2-R,
FEDER funds and the Universidad Pública de Navarra.