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

Fiber–optic sensors have been widely deployed in various applications, and their use has
gradually increased since the 1980 s. Distributed fiber–optic sensors, which enable …

This book explains physical principles, unique benefits, broad categories, implementation
aspects, and performance criteria of distributed optical fiber sensors (DOFS). For each kind …

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-optic distributed sensing, employing the Brillouin effect, is already a commercially
available measurement technique for the accurate estimation of the static strain/temperature …

Brillouin scattering in optical fiber describes the interaction of an electro-magnetic field
(photon) with a characteristic density variation of the fiber. When the electric field amplitude …

Abstract Distributed Fiber Optic Sensing (DFOS) is one of the promising tools for structure
health monitoring. It can measure physical quantities (such as temperature, strain, and …

Photonic crystal fibers are a kind of fiber optics that present a diversity of new and improved
features beyond what conventional optical fibers can offer. Due to their unique geometric …

A differential pulse-width pair Brillouin optical time domain analysis (DPP-BOTDA) for
centimeter spatial resolution sensing using meter equivalent pulses is proposed. This …

In the past two decades Brillouin-based sensors have emerged as a newly-developed
optical fiber sensing technology for distributed temperature and strain measurements …