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Proceedings Paper

All Fiber Magnetometer With Magnetic Feedback Compensation
Author(s): Claus J. Nielsen
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Paper Abstract

An optical magnetometer, which is capable of measuring static as well as dynamic magnetic fields, is presented. An all-fiber Marc-Zender interferometer, powered by a laser diode, was used to measure the strain of a metallic glass strip. Using a magnetic feedback technique and an AC-magnetic bias field, a minimum de-tectable field of 5pGauss in 1 Hz equivalent noise bandwidth was achieved. The magnetometer responds linearly from 0 Hz to a 3 dB bandwidth of 253 Hz and has a dynamic range of more than 100 dB.

Paper Details

Date Published: 3 January 1986
PDF: 8 pages
Proc. SPIE 0566, Fiber Optic and Laser Sensors III, (3 January 1986); doi: 10.1117/12.949802
Show Author Affiliations
Claus J. Nielsen, Technical University of Denmark (Denmark)

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

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