RT info:eu-repo/semantics/article
T1 Exploiting nonreciprocity in BOTDA systems
A1 López Gil, Alexia Inés
A1 Angulo Vinuesa, Xabier
A1 Domínguez López, Alejandro
A1 Martín López, Sonia
A1 González Herráez, Miguel
K1 Fiber optics sensors
K1 Scattering
K1 Stimulated Brillouin
K1 Nonlinear optics
K1 Electrónica
K1 Electronics
AB In this Letter, we present and demonstrate a novel technique for distributed measurements in Brillouin optical time-domain analysis based on the use of the nonlinear phase-shift induced by stimulated Brillouin scattering. Employing a Sagnac interferometer (SI), the position-resolved Brillouin phase-shift spectrum (BPS) along the fiber can be obtained, benefiting from the sensitivity to nonreciprocal phase-shifts of the SI scheme. This proposal simplifies the existing methods to retrieve the BPS distribution along an optical fiber since phase modulation, filtering, and high-bandwidth detectors are not required. The fundamentals of the technique are described theoretically and validated through numerical simulations and experimental measurements.
PB Optical Society of America
SN 0146-9592
YR 2015
FD 2015-05
LK http://hdl.handle.net/10017/25597
UL http://hdl.handle.net/10017/25597
LA eng
NO European Commission
DS MINDS@UW
RD 19-abr-2024