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 …

Environmental monitoring has become essential in order to deal with environmental
resources efficiently and safely in the realm of green technology. Environmental monitoring …

摘要四十多年来, 我国光纤传感技术在经济发展和市场需求的牵引下快速成长.
针对我国光纤传感若干典型的细分技术领域, 概括性地给出了各个细分技术的发展历程 …

Optical fiber sensor (OFS) is a commonly used tool to monitor the serviceability and integrity
of pavements. The earliest application of optical fiber sensors in the road can be traced back …

Distributed optical fiber sensors (DOFS) offer unprecedented features, the most unique one
of which is the ability of monitoring variations of the physical and chemical parameters with …

So far, the optical pulses used in phase-sensitive OTDR (ΦOTDR) were typically engineered
so as to have a constant phase along the pulse. In this work, it is demonstrated that by acting …

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 …

Distributed fiber-optic vibration sensors receive extensive investigation and play a significant
role in the sensor panorama. Optical parameters such as light intensity, phase, polarization …

Phase-sensitive optical time domain reflectometry (Ф-OTDR) is an effective way to detect
vibrations and acoustic waves with high sensitivity, by interrogating coherent Rayleigh …

A phase-sensitive optical time-domain reflectometry (Φ-OTDR) with 175 km sensing range
and 25 m spatial resolution is demonstrated, using the combination of co-pumping second …