The phase sensitive optical time-domain reflectometer (φ-OTDR), or in some applications
called distributed acoustic sensing (DAS), has been a popularly used technology for long …

In recent years, the widespread use of drones has led to serious concerns about safety and
privacy. Drone detection using microphone arrays has proven to be a promising method …

Highly sensitive distributed acoustic sensor is required in various practical applications. In
this article, an ultra high sensitive quasi distributed acoustic sensor based on coherent …

We demonstrate a Distributed Acoustic Sensor (DAS) based on Ultra-Weak Fiber Bragg
Gratings (UWFBGs) using a scalable homodyne demodulation in direct detection. We show …

We present results demonstrating several beneficial effects on distributed fiber optic
vibration sensing (DVS) functionality and performance resulting from utilizing standard …

In this letter, to break through the response bandwidth limit of quasi-distributed acoustic
sensing system, a novel interleaved chirped pulses (ICP) approach is proposed on the basis …

A polarization fading suppression technique is proposed for distributed interferometric
sensing systems, based on matched interference between polarization switched pulses. For …

The sound source localization method using conventional microphone arrays has been
widely used in industrial and military fields. However microphones cannot immune to …

Abstract A tri-component (3-C) fiber-optic interferometric accelerometer using weak fiber
Bragg grating array is proposed and tested. Experimental results showed that the axis …