Optical fiber sensors have attracted considerable attention for marine environment and
marine structural health monitoring, owing to advantages including resistance to …

Over the past few decades, optical fibers have been widely deployed to implement various
applications in high-speed long-distance telecommunication, optical imaging, ultrafast …

Distributed fiber-optic sensing technology coupled to existing subsea cables (dark fiber)
allows observation of ocean and solid earth phenomena. We used an optical fiber from the …

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 …

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 …

Natural hazard prediction and efficient crust exploration require dense seismic observations
both in time and space. Seismological techniques provide ground-motion data, whose …

Distributed acoustic sensing (DAS) is a new, relatively inexpensive technology that is rapidly
demonstrating its promise for recording earthquake waves and other seismic signals in a …

Distributed acoustic sensing (DAS) is an emerging technology that repurposes a fiber-optic
cable as a dense array of strain sensors. This technology repeatedly **s a fiber with laser …

Abstract Distributed Acoustic Sensing (DAS) is a novel tool in array seismology that
measures the phase of backscattered laser pulses traveling in a fiber‐optic cable, and …

We present one of the first case studies demonstrating the use of distributed acoustic
sensing deployed on regional unlit fiber-optic telecommunication infrastructure (dark fiber) …