DocumentCode
1128646
Title
Fiber-optic polarimetric DC magnetometer utilizing a composite metallic glass resonator
Author
Mermelstein, Marc D.
Author_Institution
Geo-Centers, Inc., Newton Center, MA, USA
Volume
4
Issue
9
fYear
1986
fDate
9/1/1986 12:00:00 AM
Firstpage
1376
Lastpage
1380
Abstract
A fiber-optic polarimetric dc magnetometer has been constructed from 50 m of high birefringence optical fiber. Magnetic fields are detected by the magnetostrictive response of a composite thin-shell resonator consisting of an acrylic tube, unannealed metallic glass ribbon, and a 20-m coil of high birefringence fiber. Quadrature is maintained with the phase tracking technique and optical common-mode rejection is utilized for noise reduction. The rms magnetometer noise corresponds to a minimum detectable magnetic field of 2.6 γ in the dc to 1-Hz bandwidth.
Keywords
Magnetometers; Magnetostrictive materials/devices; Optical fiber transducers; Optical polarization; Amorphous magnetic materials; Birefringence; Coils; Glass; Magnetic fields; Magnetometers; Magnetostriction; Optical fibers; Optical noise; Optical resonators;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/JLT.1986.1074895
Filename
1074895
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