%0 Journal Article %A Angulo Vinuesa, Xabier %A Bacquet, D. %A Martín López, Sonia %A Corredera, Pedro %A Szriftgiser, P. %A González Herráez, Miguel %T Raman-assisted Vector Brillouin Optical Time Domain Analysis %D 2013 %@ 0277-786X %U http://hdl.handle.net/10017/27677 %X Raman-assistance (RA) has become a promising technique to enhance the sensing range of standard Brillouin Optical Time Domain Analysis (BOTDA) fiber sensors due to its ability to amplify in a distributed way all the interacting signals within the fiber. Unfortunately, Raman amplification introduces a great amount of Relative Intensity Noise (RIN) to the detected low-frequency probe wave. This RIN transfer problem has been widely identified as a major limitation in RABOTDA. In Vector Brillouin Optical Time Domain Analysis (VBOTDA) the detected signal is transferred to a highfrequency carrier where the Raman RIN transfer turns out to be much less harmful. In this work we demonstrate, for the first time to our knowledge, Raman-assistance in a VBOTDA. Our results show significant reduction of the RIN transfer effect in RA-VBOTDA compared to standard RA-BOTDA, making this type of scheme particularly interesting for long range distributed sensing. %K Brillouin scattering %K Distributed optic fiber sensor %K Raman scattering %K Phase measurement %K Temperature sensing %K Strain sensing %K Ciencias tecnológicas %K Electrónica %K Technology %K Electronics %~ Biblioteca Universidad de Alcala