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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
All-fiber optical magnetic-field sensor based on Faraday rotation in highly terbium-doped fiber
L Sun1, S Jiang, J R Marciante
1Laboratory for Laser Energetics, University of Rochester, 250 East River Rd, Rochester, NY 14623, USA. lsun@lle.rochester.edu
Optics Express
|April 15, 2010
Abstract:
An all-fiber optical magnetic field sensor is demonstrated. It consists of a fiber Faraday rotator and a fiber polarizer. The fiber Faraday rotator uses a 2-cm-long section of 56-wt.%-terbium-doped silicate fiber with a Verdet constant of -24.5 rad/(Tm) at 1053 nm. The fiber polarizer is Corning SP1060 single-polarization fiber. The sensor has a sensitivity of 0.49 rad/T and can measure magnetic fields from 0.02 to 3.2 T.
