%0 Journal Article 
%A Pastor Graells, Juan
%A Romero Cortés, Luis
%A Fidalgo Martins, Hugo
%A Fernández Ruiz, María del Rosario
%A Azaña, José
%A Martín López, Sonia
%A González Herráez, Miguel
%T 20 dB SNR enhancement in phase-sensitive OTDR using pulse stretching and recompression
%D 2017
%@ 0277-786X
%U http://hdl.handle.net/10017/31029
%X This work shows the possibility of using chirped pulse amplification concepts in order to increase the signal-to-noise ratio (SNR) of phase sensitive optical time domain reflectometry (ΦOTDR) sensors. This method allows to increase the SNR of a ΦOTDR sensor without sacrificing spatial resolution. Here, we report a ΦOTDR sensor with a spatial resolution of 3 mm (limited only by the available detection equipment) and an SNR increase of 20 dB over the traditional architecture. To our knowledge, this is the highest-resolution ΦOTDR sensor reported to date.
%K Chirped pulse amplification
%K Fiber optic sensors
%K Optical time domain reflectometry
%K Electrónica
%K Electronics
%~ Biblioteca Universidad de Alcala