RT info:eu-repo/semantics/article
T1 Raman-assisted Vector Brillouin Optical Time Domain Analysis
A1 Angulo Vinuesa, Xabier
A1 Bacquet, D.
A1 Martín López, Sonia
A1 Corredera, Pedro
A1 Szriftgiser, P.
A1 González Herráez, Miguel
K1 Brillouin scattering
K1 Distributed optic fiber sensor
K1 Raman scattering
K1 Phase measurement
K1 Temperature sensing
K1 Strain sensing
K1 Ciencias tecnológicas
K1 Electrónica
K1 Technology
K1 Electronics
AB Raman-assistance (RA) has become a promising technique to enhance the sensing range of standard Brillouin OpticalTime Domain Analysis (BOTDA) fiber sensors due to its ability to amplify in a distributed way all the interacting signalswithin the fiber. Unfortunately, Raman amplification introduces a great amount of Relative Intensity Noise (RIN) to thedetected 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 highfrequencycarrier where the Raman RIN transfer turns out to be much less harmful. In this work we demonstrate, for thefirst time to our knowledge, Raman-assistance in a VBOTDA. Our results show significant reduction of the RIN transfereffect in RA-VBOTDA compared to standard RA-BOTDA, making this type of scheme particularly interesting for longrange distributed sensing.
PB Society of Photo-Optical Instrumentation Engineers (SPIE)
SN 978-0-81949-634-8
SN 0277-786X
YR 2013
FD 2013-05-19
LK http://hdl.handle.net/10017/27677
UL http://hdl.handle.net/10017/27677
LA eng
NO European Commission
DS MINDS@UW
RD 23-abr-2024