%0 Journal Article 
%A Angulo Vinuesa, Xabier
%A López Gil, Alexia Inés
%A Domínguez López, Alejandro
%A Cruz, J.L.
%A Andrés, M.V.
%A Martín López, Sonia
%A González Herráez, Miguel
%T Simultaneous gain and phase profile determination on an interferometric BOTDA
%D 2015
%@ 0277-786X
%U http://hdl.handle.net/10017/26544
%X Up to now, complex (phase and intensity) measurements in Brillouin Optical Time-Domain Analysis (BOTDA) systems required complex phase modulation methods and high-bandwidth (multi-GHz) detection. In this work, we propose a novel technique that is able to retrieve simultaneously both gain/loss and phase characteristics of the Brillouin interaction by just introducing a Sagnac Interferometer (SI) 011 a standard BOTDA sensing scheme. The technique is described analytically and demonstrated experimentally. With this technique, a reliability increase is produced since redundant measurements can be performed.
%K Brillouin scattering
%K Distributed optic fiber sensor
%K Interferometry
%K Temperature sensor
%K Strain sensor
%K Electrónica
%K Electronics
%~ Biblioteca Universidad de Alcala