Fiber-optic distributed acoustic sensor (DAS) is one of the most attractive and promising fiber-
optic sensing technologies in the recent decade. It can simultaneously detect and retrieve …

Distributed fiber acoustic sensing (DAS) technology can continuously spatially detect
disturbances along the sensing fiber over long distance in real time. It has many unique …

For a distributed fiber-optic vibration sensor (DFVS), the vibration signal extracted from the
phase of backscattering has a linear response to the applied vibration, and is more attractive …

Distributed optical fibre sensors deliver a map of a physical quantity along an optical fibre,
providing a unique solution for health monitoring of targeted structures. Considerable …

Distributed acoustic sensing (DAS) using coherent Rayleigh backscattering in an optical
fiber has become a ubiquitous technique for monitoring multiple dynamic events in real time …

The optical fiber acoustic sensing system is suitable for long-distance monitoring of the
acoustic signals generated by the external disturbances. According to the continuity of …

Specialty fibers have introduced new levels of flexibility and variability in distributed fiber
sensing applications. In particular, distributed acoustic sensing (DAS) systems utilized] the …

In order to solve fading problem and realize sub-meter spatial resolution in DAS, this paper
proposes a novel configuration of time-gated digital optical frequency domain reflectometry …

We present a review of the basic operating principles and measurement schemes of
standalone and hybrid distributed optical fiber sensors based on Raman and Brillouin …

Distributed acoustic sensing (DAS) technology based on Rayleigh backscattering is
experiencing a rapid development and leading itself into wider applications because of the …