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Content Provider | IEEE Xplore Digital Library |
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Author | Aerssens, M. Gusarov, A. Brichard, B. Massaut, V. Megret, P. Wuilpart, M. |
Copyright Year | 2011 |
Description | Author affiliation: Belgian Nuclear Research Center, Boeretang 200, B-2400 Mol Belgium (Gusarov, A.; Brichard, B.; Massaut, V.) || Telecommunications and Electromagnetism department of the university of Mons, 33 Boulevard Dolez B-7000 Mons, Belgium (Aerssens, M.; Megret, P.; Wuilpart, M.) |
Abstract | Fiber optical current sensor (FOCS) is a technique considered to be compatible with the ITER nuclear environment. FOCS principle is based on the magneto-optic Faraday effect that produces non-reciprocal circular birefringence when a magnetic field is applied in the propagation direction of the light beam. The magnetic field or the electrical current is deduced from the modification of the state of polarization of light. The linear birefringence of the fiber related with non-perfect manufacturing, temperature changes or stress constitute a parasitic effect that reduces the precision and sensitivity of FOCS. A two-pass optical scheme with a Faraday mirror at the end has been proposed to compensate the influence of linear birefringence. In this paper we perform a Stokes analysis of the two-pass optical scheme to highlight the fact that the linear birefringence is not compensated perfectly by the Faraday mirror when non-reciprocal birefringence such as Faraday effect is also present. |
Starting Page | 1 |
Ending Page | 6 |
File Size | 2743667 |
Page Count | 6 |
File Format | |
ISBN | 9781457709258 |
e-ISBN | 9781457709272 |
DOI | 10.1109/ANIMMA.2011.6172868 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2011-06-06 |
Publisher Place | Belgium |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Optical fibers Plasma current measurement Optical fiber sensors Optical polarization Linear birefringence compensation Faraday effect Fiber optical current sensor (FOCS) Plasmas Mirrors |
Content Type | Text |
Resource Type | Article |
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