Overcoming non-local effects and Brillouin threshold limitations in Brillouin distributed sensors
Fecha
2015Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
|
10.1117/12.2205448
Resumen
We demonstrate, for the first time to our knowledge, a Brillouin optical time domain analysis sensor that is able
to operate with a probe power larger than the Brillouin threshold of the deployed sensing fiber and that is free
from detrimental non-local effects. The technique is based on a dual-probe-sideband setup in which a frequency
modulation of the probes waves along the fiber is introduc ...
[++]
We demonstrate, for the first time to our knowledge, a Brillouin optical time domain analysis sensor that is able
to operate with a probe power larger than the Brillouin threshold of the deployed sensing fiber and that is free
from detrimental non-local effects. The technique is based on a dual-probe-sideband setup in which a frequency
modulation of the probes waves along the fiber is introduced. This makes the frequency of maximum interaction
between pump and probes to vary along the fiber, thus mitigating the pump pulse depletion and making it
possible to use very large probe power, which brings an improved signal-to-noise ratio in detection. [--]
Materias
Brillouin distributed sensors,
Brillouin optical time domain analysis,
Brillouin threshold
Editor
SPIE
Publicado en
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963487 (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
Aparece en las colecciones
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