Phase-sensitive optical time-domain reflectometry (Φ-OTDR) has attracted numerous
attention due to its superior performance in detecting the weak perturbations along the fiber …

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 …

Recently, Rayleigh scattering-based distributed fiber sensors have been widely used for
measurement of static and dynamic phenomena such as temperature change, dynamic …

In unmanned monitoring such as perimeter security, pipeline detection, railway security, and
so on, it is still a challenging task to accurately locate the irregular vibration events …

Fiber Bragg grating (FBG) array is a powerful technique for quasi-distributed sensing along
the entire length of sensing fiber with fast response and high precision. It has been widely …

In recent years, phase demodulation methods for optical fiber vibration sensors (OFVS) have
attracted more and more attention, aiming to accurately detect vibration signals. The …

A novel subsea cable condition monitoring technique based on embedded optical fiber
inside the cable is demonstrated. It is shown that a distributed optical fiber vibration sensor …

Distributed vibration sensing in optical fibers opened entirely new opportunities and
penetrated various sectors from security to seismic monitoring. Here, we demonstrate a most …

Thanks to the development of machine learning and deep learning, data-driven pattern
recognition based on neural network is a trend for Φ-OTDR system intrusion event …

Traditional event recognition methods for signal collected by Φ-OTDR sensing system is
difficult to identify the event category accurately in field application. Deep-learning-based …