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Raman-Assisted Brillouin Distributed Temperature Sensor over 100 km featuring 2 meter Resolution and 1.2 ºC Uncertainty  
Description:
Raman 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. 

Publication year:    2012
Reference:    Angulo-Vinuesa, X.; Martín-López, S.; Nuño, J.; Corredera, P.; Ania-Castañón, J. F.; Thevenaz, L.; González-Herraez, M.; "Raman-Assisted Brillouin Distributed Temperature Sensor over 100 km featuring 2 meter Resolution and 1.2 ºC Uncertainty", IEEE J. Lightwave Technol. , vol. 30, no.99 (2012)
Magazine:    IEEE J. Lightwave Technol.
Running:    No.
 
Investigación financiada por el Ministerio de Ciencia e Innovación y la Agencia Estatal de Investigación
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