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

Distributed optical fiber vibration sensor (DOFVS) is suitable for remote monitoring of
vibration signals generated by external perturbations. In order to improve the sensing …

Abstract Optical-pulse-coding (OPC) phase-sensitive optical time-domain reflectometry (Φ-
OTDR) sends a train of pulses into a fiber, and has high spatial resolution decided by the …

We introduce a detailed theoretical, numerical, and experimental study of the effects of
laser's phase noise on the performance of phase-sensitive optical time-domain reflectometry …

We demonstrate a two-wavelength differential-phase-measuring OTDR sensor that uses
perfect periodic correlation phase codes to enhance the measurement performance. The …

摘要基于相位敏感光时域反射技术的分布式声波传感(DAS) 系统可实现大范围分布式的声波
探测, 近年来, 在油气勘探, 地质成像, 管道安全, 周界安防等应用领域受到研究关注 …

A distributed and dynamic strain sensing system based on frequency-scanning phase-
sensitive optical time domain reflectometry is proposed and demonstrated. By utilizing an RF …

Optical fiber sensors are polarization sensitive and generally affected by polarization fading.
This paper contributes to the optimal choice of polarization fading suppression methods for …

Distributed optical fiber acoustic sensing (DAS) technique has been applied in pipeline
health monitoring, and the commonly used sensor is phase-sensitive optical time domain …

A distributed optical fiber acoustic sensor based on interferometric demodulation technique
with no polarization fading is demonstrated. A polarization diversity scheme based on a high …