Polarization optical fiber sensor for distributed current monitoring

Luca Palmieri; Davide Sarchi; Andrea Galtarossa

doi:10.1117/12.2058473

2 June 2014 Polarization optical fiber sensor for distributed current monitoring

Luca Palmieri, Davide Sarchi, Andrea Galtarossa

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91570O (2014) https://doi.org/10.1117/12.2058473
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

A new technique to distributedly monitor intense current along high energy electric cables is presented and experimentally validated. The new technique is based on the distributed polarization measurement of Rayleigh backscattered light and on Faraday rotation of polarization induced by the electric current owing in the cable. While current monitoring by Faraday rotation in optical fibers is among the first examples of optical fiber sensors, this is the first time, to best of our knowledge, that a distributed current sensor is implemented. Preliminary experimental tests have been performed on a 40-m-long electric cable, with currents varying from 0 kA to 2:5 kA, using standard telecommunication fibers non-optimized to the specific aim. Results confirm the viability of the approach.

Citation Download Citation

Luca Palmieri, Davide Sarchi, and Andrea Galtarossa "Polarization optical fiber sensor for distributed current monitoring", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91570O (2 June 2014); https://doi.org/10.1117/12.2058473

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