Rayleigh-Based Distributed Optical Fiber Sensing release_xwjlla4fwbbancmqo66b4plo4a

by Luca Palmieri, Luca Schenato, MARCO SANTAGIUSTINA, ANDREA GALTAROSSA

Published in Sensors by MDPI AG.

2022   Volume 22, Issue 18, p6811

Abstract

Distributed optical fiber sensing is a unique technology that offers unprecedented advantages and performance, especially in those experimental fields where requirements such as high spatial resolution, the large spatial extension of the monitored area, and the harshness of the environment limit the applicability of standard sensors. In this paper, we focus on one of the scattering mechanisms, which take place in fibers, upon which distributed sensing may rely, i.e., the Rayleigh scattering. One of the main advantages of Rayleigh scattering is its higher efficiency, which leads to higher SNR in the measurement; this enables measurements on long ranges, higher spatial resolution, and, most importantly, relatively high measurement rates. The first part of the paper describes a comprehensive theoretical model of Rayleigh scattering, accounting for both multimode propagation and double scattering. The second part reviews the main application of this class of sensors.
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Type  article-journal
Stage   published
Date   2022-09-08
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DOI  10.3390/s22186811
PubMed  36146159
PMC  PMC9505392
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