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Proceedings Paper

Wideband Optical Fiber Magnetic Field Sensor
Author(s): S. J. Martin; M. A. Butler
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Paper Abstract

Optical fibers using pure quartz or quartz doped with rare earth elements have been used as magnetic field sensors [1]. In these sensors Faraday rotation of the optical polarization direction is used as the basis for measuring magnetic field strength. The angle of polarization rotation in the fiber is 0=BUL, where B is magnetic field strength, V is the Verdet constant, and L is the propagation path length. Typically an analyzer is used after the fiber to convert polarization rotation into intensity modulation.

Paper Details

Date Published: 3 January 1986
PDF: 4 pages
Proc. SPIE 0566, Fiber Optic and Laser Sensors III, (3 January 1986); doi: 10.1117/12.949789
Show Author Affiliations
S. J. Martin, Sandia National Laboratories (United States)
M. A. Butler, Sandia National Laboratories (United States)


Published in SPIE Proceedings Vol. 0566:
Fiber Optic and Laser Sensors III
Emery L. Moore; O. Glenn Ramer, Editor(s)

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