Fabrication and testing of a nickel-coated single-mode fibre magnetometer

4 March 1982

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 18 (5) , 224-225
https://doi.org/10.1049/el:19820153

Abstract

A single-mode optical fibre was coated with nickel over its cladding using CVD. The thickness of nickel was greater than 90 μm along a 15 cm span. The phase sensitivity of light in the fibre was measured interferometrically and found to be 1.5 × 10⁻⁷ radian Oe⁻¹ after a thermal anneal. The measured sensitivity is within an order of magnitude of values obtained using bulk nickel mandrels. A frequency roll-off of sensitivity was in evidence beyond several hundred hertz.

Keywords

FIBRE OPTICS
CLADDING
PHASE SENSITIVITY
THERMAL ANNEAL
TESTING
CVD
NI-COATED SINGLE-MODE FIBRE MAGNETOMETER

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