9 September 2010 Long-range hybrid double-bus network with point and distributed Brillouin sensors using Raman amplification
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Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 76533R (2010) https://doi.org/10.1117/12.866453
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal
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.
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M. Fernandez-Vallejo, D. Olier, A. Zornoza, R. A. Perez-Herrera, S. Díaz, C. Elosúa, C. Bariain, A. Loayssa, M. Lopez-Amo, "Long-range hybrid double-bus network with point and distributed Brillouin sensors using Raman amplification", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76533R (9 September 2010); doi: 10.1117/12.866453; https://doi.org/10.1117/12.866453
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