%0 Journal Article 
%A Angulo Vinuesa, Xabier
%A Martín López, Sonia
%A Corredera, Pedro
%A González Herráez, Miguel
%T Raman-assisted Brillouin optical time-domain analysis with sub-meter resolution over 100 km
%D 2012
%U http://hdl.handle.net/10017/24937
%X Sub-meter resolution in long-distance Brillouin Optical Time Domain Analysis (BOTDA) cannot be trivially achieved due to several issues including: resolution-uncertainty trade-offs, self-phase modulation, fiber attenuation, depletion, etc. In this paper we show that combining Raman assistance, differential pulse-width pair (DPP) measurements and a novel numerical de-noising procedure, we could obtain sub-meter resolution Brillouin optical time-domain analysis over a range of 100 km. We successfully demonstrate the detection of a 0.5 meter hot-spot in the position of worst contrast along the fiber.
%K Ciencias tecnológicas
%K Electrónica
%K Technology
%K Electronics
%~ Biblioteca Universidad de Alcala