This study presents a framework for detecting mechanical damage in pipelines, focusing on
generating simulated data and sampling to emulate distributed acoustic sensing (DAS) …

In this letter, we present a novel and simple method to suppress the signal fading
phenomena in polarization optical time-domain reflectometry (POTDR). A combination of …

Polarization optical time-domain reflectometry (POTDR) is sensitive to perturbations on any
point of the fiber under test (FUT). However, restricted by the sensing principle, the signal of …

Using a quaternion method, the polarization mode-coupling coefficient can be derived from
three components of the Stokes vectors at three adjacent points along a fiber. A complete …

The state of polarization (SOP) in a polarization-maintaining fiber subjected to external
stress is studied using the quaternion method. The stress principal axis on the Poincare …

Polarization optical time domain reflectometers (POTDR) can detect vibration of fiber via the
change of the state of polarization (SOP) of the Rayleigh backscattered light. For traditional …

A novel scheme based on polarization-sensitive optical time-domain reflectometry (P-OTDR)
for distributed measurement of multi-event in polarization-maintaining fiber (PMF) is …

Multi-mode fiber (MMF) is used in a polarization-sensitive optical time domain reflectometer
(OTDR) for vibration event location and spectrum analysis. The vibration events acting on …

An improved data processing and analysis method is proposed to realize simultaneous
monitor of multiple vibrations using polarization optical time domain reflectometry system. In …

This study proposes a machine-learning-based framework for detecting mechanical damage
in pipelines, utilizing physics-informed datasets collected from simulations for mechanical …