Brillouin optical time-domain analysis sensor assisted by Brillouin distributed amplification of pump pulses
Fecha
2015Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.1364/OE.23.030448
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 and compensates optical fiber
attenuation. This amplification does not introduce any ...
[++]
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 and compensates optical fiber
attenuation. This amplification does not introduce any significant noise to
the BOTDA’s probe wave due to the inherent directionality of the Brillouin
gain. Additionally, we deploy a differential pulse-width pair measurement
method to avoid measurement errors due to the interplay between the
self-phase modulation effect and the changes in the temporal shape of the
pulses induced by the transient behavior of Brillouin gain. Experimental
proof-of-concept results in a 50-km fiber link demonstrate full compensa-
tion of the fiber’s attenuation with no penalty on the signal-to-noise ratio of
the detected signal. [--]
Materias
Stimulated Brillouin scattering,
Fiber optics sensors,
Brillouin optical time domain analysis,
Brillouin amplification
Editor
Optical Society of America
Publicado en
Optics Express, Vol. 23, Issue 23, pp. 30448-30458 (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 wish to acknowledge the financial support from the Spanish Ministerio de
Economía y Competitividad through project TEC2013-47264-C2-2-R, FEDER funds and the
Universidad Pública de Navarra.
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