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PUBLICATIONS

Fiber-optic Faraday-effect magnetic-field sensor based on flux concentrators

Published

Author(s)

M. N. Deeter

Abstract

The principles and performance of a fiber-optic Faraday-effect magnetic-field sensor designed around an yttrium-iron-garnet (YIG) sensing element and two flux concentrators are described. The system design exploits the technique of polarization-rotated reflection in which a single polarization-maintaining optical fiber links the sensor head to the optical source and detection system. In the sensing head, ferrite flux concentrators are magnetically coupled to the YIG sensing element to achieve maximum sensitivity. The system exhibits a noise equivalent field of 6 pT/√Hz and a 3-dB bandwidth of ~10 MHz.
Citation
Applied Optics
Volume
35
Issue
1
Pub Type
Journals

Download Paper

Local Download

Citation

Deeter, M. (1996), Fiber-optic Faraday-effect magnetic-field sensor based on flux concentrators, Applied Optics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=27719 (Accessed October 11, 2025)

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Created January 1, 1996, Updated February 17, 2017
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