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Proceedings Paper

Long-range hybrid double-bus network with point and distributed Brillouin sensors using Raman amplification
Author(s): M. Fernandez-Vallejo; D. Olier; A. Zornoza; R. A. Perez-Herrera; S. Díaz; C. Elosúa; C. Bariain; A. Loayssa; M. Lopez-Amo
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Paper Abstract

We propose a hybrid network that combine point and distributed Brillouin sensors in an 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-optic tapers, with distributed temperature sensing along the network bus. The sensor network with a double-bus topology offers a higher optical signal to noise ratio and dynamic range than a single-bus for intensity point multiplexed sensors. In this network, we include low-cost intensity sensors that are able to measure vibrations in the 0.01 to 50 Hz frequency range, which are important in the monitoring of large infrastructures such as pipelines.

Paper Details

Date Published: 9 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76533R (9 September 2010); doi: 10.1117/12.866453
Show Author Affiliations
M. Fernandez-Vallejo, Univ. Pública de Navarra (Spain)
D. Olier, Univ. Pública de Navarra (Spain)
A. Zornoza, Univ. Pública de Navarra (Spain)
R. A. Perez-Herrera, Univ. Pública de Navarra (Spain)
S. Díaz, Univ. Pública de Navarra (Spain)
C. Elosúa, Univ. Pública de Navarra (Spain)
C. Bariain, Univ. Pública de Navarra (Spain)
A. Loayssa, Univ. Pública de Navarra (Spain)
M. Lopez-Amo, Univ. Pública de Navarra (Spain)


Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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