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Raman-assisted Brillouin distributed temperature sensor over 100 km featuring 2 m resolution and 1.2 °c uncertainty

AuthorsAngulo Vinuesa, X. ; Martín López, Sonia; Nuño, Javier ; Corredera, Pedro ; Ania Castañón, Juan Diego ; Thévenaz, Luc; González Herráez, Miguel
Issue Date2012
PublisherOptical Society of America
CitationJournal of Lightwave Technology 30: 1060-1065 (2012)
AbstractRaman assistance in distributed sensors based on Brillouin optical time-domain analysis can significantly extend the measurement distance. In this paper, we have developed a 2 m resolution long-range Brillouin distributed sensor that reaches 100 km using first-order Raman assistance. The estimated uncertainty in temperature discrimination is 1.2 °C, even for the position of worst contrast. The parameters used in the experiment are supported by a simple analytical model of the required values, considering the main limitations of the setup. © 2012 IEEE.
Identifiersdoi: 10.1109/JLT.2011.2168807
issn: 0733-8724
Appears in Collections:(CFMAC-IO) Artículos
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