Long-range hybrid network with point and distributed Brillouin sensors using Raman amplification
Fecha
2010Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
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10.1364/OE.18.009531
Resumen
We propose a novel concept for hybrid networks that combine
point and distributed Brillouin sensors in a cost-effective architecture that
also deploys remote distributed Raman amplification to extend the sensing
range. A 46-km proof-of-concept network is experimentally demonstrated
integrating point vibration sensors based on fiber Bragg gratings and tapers
with distributed temperature sensing al ...
[++]
We propose a novel concept for hybrid networks that combine
point and distributed Brillouin sensors in a cost-effective architecture that
also deploys remote distributed Raman amplification to extend the sensing
range. A 46-km proof-of-concept network is experimentally demonstrated
integrating point vibration sensors based on fiber Bragg gratings and tapers
with distributed temperature sensing along the network bus. In this network
the use of Raman amplification to compensate branching and fiber losses
provides a temperature resolution of 0.7°C and 13 m. Moreover, it was
possible to obtain good optical signal to noise ratio in the measurements
from the four point vibration sensors that were remotely multiplexed in the
network. These low-cost intensity sensors are able to measure vibrations in
the 0.1 to 50 Hz frequency range, which are important in the monitoring of
large infrastructures such as pipelines. [--]
Materias
Long-range hybrid networks,
Point and distributed Brillouin sensors,
Raman amplification
Editor
Optical Society of America
Publicado en
Optics Express, Vol. 18, Issue 9, pp. 9531-9541 (2010)
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 would like to acknowledge the financial support from the Spanish Ministerio de
Educación y Ciencia through project TEC2007-67987-C02-02.