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30 January 2012 Distributed fiber optic sensor for mapping of intense magnetic fields based on polarization sensitive reflectometry
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Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 835131 (2012) https://doi.org/10.1117/12.915966
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia
Abstract
We describe a novel distributed fiber optic sensor, which is able to map both strength and orientation of intense static magnetic fields in the area spanned by the fiber. The sensor is based on Faraday rotation and on polarization analysis of the field backscattered by the fiber due to Rayleigh scattering. Owing to a specific theoretical model, it is possible to isolate and measure the effect of magnetic field along the fiber, independently of its intrinsic birefringence. The small Verdet constant of standard silica fibers makes the proposed technique most suited to intense magnetic fields. Two different sensors based on this approach have been built and successfully tested in a 1.5 T magnetic resonance imaging scanner.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Luca Palmieri and Andrea Galtarossa "Distributed fiber optic sensor for mapping of intense magnetic fields based on polarization sensitive reflectometry", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835131 (30 January 2012); https://doi.org/10.1117/12.915966
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