RT info:eu-repo/semantics/conferenceObject
T1 Polarisation pulling in Brillouin optical time-domain analysers
A1 Soto Hernández, Marcelo Alfonso
A1 López Gil, Alexia Inés
A1 González Herráez, Miguel
A1 Thévenaz, Luc
K1 Distributed fibre sensor
K1 Optical fibre sensor
K1 Polarisation
K1 Stimulated Brillouin scattering
K1 Ciencias tecnológicas
K1 Electrónica
K1 Technology
K1 Electronics
AB The impact of Brillouin scattering on the polarisation of pump and probe in a Brillouin optical-time domain analyser is investigated. Experimental results indicate that the Brillouin interaction integrated along the entire sensing fibre produces a polarisation pulling force that changes the pump polarisation. Although this force can be compensated to first order by dual-sideband probes, the Brillouin gain/loss experienced by probe bands induce a net pulling that leads to uncompensated polarisation fading and reduced signal-to-noise ratio. While the use of two simultaneous orthogonally-polarised probes alleviates fading issues, spectral distortions originate from the coupling between Brillouin gain and polarisation pulling.
SN 978-151061091-0
SN 0277-786X
YR 2017
FD 2017
LK http://hdl.handle.net/10017/30888
UL http://hdl.handle.net/10017/30888
LA eng
NO European Commission
DS MINDS@UW
RD 24-abr-2024