Articles | Volume 7, issue 1
J. Sens. Sens. Syst., 7, 421–431, 2018
https://doi.org/10.5194/jsss-7-421-2018
J. Sens. Sens. Syst., 7, 421–431, 2018
https://doi.org/10.5194/jsss-7-421-2018

Regular research article 13 Jun 2018

Regular research article | 13 Jun 2018

Study of different magneto-optic materials for current sensing applications

Sarita Kumari and Sarbani Chakraborty

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Cited articles

Aerssens, M., Gusarov, A., Brichard, B., Massaut, V., Mégret, P., and Wuilpart, M.: Faraday effect based optical fiber current sensor for tokamaks, 2nd International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 6–9 June 2011, Ghent, Belgium, 1–6, IEEE, 2011. 
Bera, S. C. and Chakraborty, S.: Study of magneto-optic element as a displacement sensor, Measurement, 44, 1747–1752, 2011. 
Booth, R. C. and White, E. A. D.: Magneto-optic properties of rare earth iron Garnet crystals in the wavelength range 1.1–1.7 µm and their use in device fabrication, J. Phys. D Appl. Phys., 17, 579–587, https://doi.org/10.1088/0022-3727/17/3/015, 1984. 
Chakraborty, S. and Bera, S. C.: Magneto-optic over-current detection with null optical tuning, Sensors & Transducers Journal, 87, 52–62, 2008. 
Chakraborty, S. and Kumari, S.: Design and development of a magneto-optic sensor for magnetic field measurements, Sensors & Transducers, 184, 153–158, 2015. 
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Short summary
This article discusses the properties of different diamagnetic and paramagnetic materials for a basic current/magnetic field sensor system set up with different relative orientations of analyzers and polarizers. The paper analyzes a linearity range of different materials and their sensitivity for different wavelengths. Terbium doped glass, terbium gallium garnet, doped TGG and dense flint glass materials are used for analysis based on the Faraday rotation principle.