RT info:eu-repo/semantics/conferenceObject
T1 Unexpected non-local effects in dual-probe-sideband BOTDA
A1 Domínguez López, Alejandro
A1 Angulo Vinuesa, Xabier
A1 López Gil, Alexia Inés
A1 Martín López, Sonia
A1 González Herráez, Miguel
K1 Brillouin scattering
K1 Fiber optics sensors
K1 Nonlinear optics
K1 Ciencias tecnológicas
K1 Electrónica
K1 Technology
K1 Electronics
AB Until now, non-local effects in dual-probe-sideband Brillouin Optical Time Domain Analysis (BOTDA) systems have been considered negligible if the probe power is below the Stimulated Brillouin Scattering (SBS) threshold. In this paper, we show the appearance of non-local effects even below the SBS threshold. The pump pulse experiences a frequencydependent spectral deformation that affects the readout process differently in the gain and loss configurations. The main conclusion of our study is that the measurements in gain configuration are more robust to this non-local effect than the loss configuration. These results are of particular interest for manufacturers of long-range BOTDA systems.
PB Society of Photo-Optical Instrumentation Engineers (SPIE)
SN 978-1-62841-839-2
SN 0277-786X
YR 2015
FD 2015-09-28
LK http://hdl.handle.net/10017/27548
UL http://hdl.handle.net/10017/27548
LA eng
NO European Commission
DS MINDS@UW
RD 29-abr-2024