Fernández Vallejo, MontserratOlier Aguado, DavidZornoza Indart, AnderPérez Herrera, Rosa AnaDíaz Lucas, SilviaElosúa Aguado, CésarBariáin Aisa, CándidoLoayssa Lara, AlaynLópez-Amo Sáinz, Manuel2019-12-232019-12-232012M. Fernandez-Vallejo et al., '46-km-Long Raman Amplified Hybrid Double-Bus Network With Point and Distributed Brillouin Sensors,' in IEEE Sensors Journal, vol. 12, no. 1, pp. 184-188, Jan. 2012.1558-174810.1109/JSEN.2011.2131128https://academica-e.unavarra.es/handle/2454/35966We experimentally demonstrate a 46-km hybrid network that combine point and distributed Brillouin sensors. The proposed sensor network multiplexes low-cost intensity point sensors based on fiber-optic tapers, which are able to measure vibrations in the 0.01 to 50 Hz frequency range. The sensor network with a double-bus is a low noise configuration, which offers a higher optical signal to noise ratio and dynamic range than a single-bus. Thus, the number of sensors to be multiplexed could increase or we could reach further distances. The system also deploys remote distributed Raman amplification to extend the sensing range.10 p.application/pdfeng© 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other workBrillouin distributed sensingFiber Bragg grating (FBG)Fiber optics sensorsRaman amplificationWavelength division multiplexing (WDM)info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessAcceso abierto / Sarbide irekia