Raman distributed optical fiber sensing has been demonstrated to be a mature and versatile
scheme that presents great flexibility and effectivity for the distributed temperature …

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

Rayleigh, Brillouin and Raman scatterings in fibers result from the interaction of photons with
local material characteristic features like density, temperature and strain. For example an …

Fiber Bragg grating (FBG) array is a powerful technique for quasi-distributed sensing along
the entire length of sensing fiber with fast response and high precision. It has been widely …

Aging degradation and seismic damage of civil infrastructures have become a serious issue
for society, and one promising technology for monitoring their conditions is optical fiber …

Over the past five years, Distributed Temperature Sensing (DTS) along fiber optic cables
using Raman backscattering has become an important tool in the environmental sciences …

Oil and gas (O&G) explorations moving into deeper zones for enhanced oil and gas
recovery are causing serious safety concerns across the world. The sensing of critical …

Over the last 37 years, particular interest has been directed towards exploring the
characteristics of the optical environment for sensing, giving rise to what would now be one …

We present a review of the basic operating principles and measurement schemes of
standalone and hybrid distributed optical fiber sensors based on Raman and Brillouin …

In the application of the fire prevention, the sensor is expected to alarm before the
occurrence of fire. We propose and experimentally demonstrate a long-range Raman …