RT info:eu-repo/semantics/article
T1 Simple Method for the Elimination of Polarization Noise in BOTDA Using Balanced Detection and Orthogonal Probe Sidebands
A1 López Gil, Alexia Inés
A1 Domínguez López, Alejandro
A1 Martín López, Sonia
A1 González Herráez, Miguel
K1 Balanced detection
K1 Brillouin scattering
K1 Distributed optic fiber sensor
K1 Polarization noise
K1 Temperature sensor
K1 Ciencias tecnológicas
K1 Electrónica
K1 Technology
K1 Electronics
AB Polarization noise arises in Brillouin optical timedomainanalysis due to the strong polarization sensitivity of stimulatedBrillouin scattering. To avoid this noise, it turns out to beindispensable to perform some kind of polarization scrambling,either in the pump pulse, the probe signal or both. This is usuallyachieved using polarization scrambling/switching systems, which,being mechanical, tend to be not as robust as it would be desirable.In this paper, we propose a completely passive system,with no movingparts, to eliminate polarization noise in a BOTDA. It is basedon the use of passive depolarization of the pump pulse togetherwith balanced detection among orthogonally polarized Stokes andanti-Stokes bands of the probe signal. The setup requires no alignmentreadjustment over time and provides a performance similarto a conventional BOTDA using scrambler.
PB IEEE
SN 0733-8724
YR 2015
FD 2015-06
LK http://hdl.handle.net/10017/25099
UL http://hdl.handle.net/10017/25099
LA eng
NO Ministerio de Economía y Competitividad
DS MINDS@UW
RD 20-abr-2024