RT info:eu-repo/semantics/article
T1 Resolving 1 million sensing points in an optimized differential time‐domain Brillouin sensor
A1 Domínguez López, Alejandro
A1 Soto Hernández, Marcelo Alfonso
A1 Martín López, Sonia
A1 Thévenaz, Luc
A1 González Herráez, Miguel
K1 Fiber optics sensors
K1 Scattering
K1 Stimulated Brillouin
K1 Nonlinear optics
K1 Fibers
K1 Electrónica
K1 Electronics
AB A differential pulse-width pair (DPP) Brillouin distributed fiber sensor is implemented to achieve centimetric spatial resolution over distances of several kilometers. The presented scheme uses a scanning method in which the spectral separation between the two probe sidebands is kept constant, while the optical frequency of the pump is swept to scan the Brillouin spectral response. Experimental results show that this method avoids detrimental temporal distortions of the pump pulses, which in a standard implementation prevent the DPP method from operating over mid-to-long distances. Such a novel scanning procedure allows the resolving, for the first time in pure time-domain Brillouin sensors, of 1,000,000 sensing points, i.e., 1 cm spatial resolution over 10 km in a conventional acquisition time.
PB Optical Society of America (OSA)
SN 0146-9592
YR 2017
FD 2017-05-15
LK http://hdl.handle.net/10017/29779
UL http://hdl.handle.net/10017/29779
LA eng
NO European Commission
DS MINDS@UW
RD 16-abr-2024