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Optical Engineering

Fiber optic electric current measurement employing two metal-coated fibers: bandwidth improvement
Author(s): Jin-Chia Kuo; Likarn Wang
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Paper Abstract

A method of improving the band performance of fiber optic electric current measurement is described and put into test. An electric current sensing scheme with two metal-coated single-mode optical fibers in an Mach-Zehnder interferometer is employed. Experiments show that a comparatively large measurement bandwidth can be obtained by use of this method, in which only a low offset frequency component is detected, whatever the measurand frequency is. In the test experiments, we have shown a flat characteristic in frequency response up to 20 kHz.

Paper Details

Date Published: 1 May 1998
PDF: 6 pages
Opt. Eng. 37(5) doi: 10.1117/1.601846
Published in: Optical Engineering Volume 37, Issue 5
Show Author Affiliations
Jin-Chia Kuo, National Tsing Hua Univ. (Taiwan)
Likarn Wang, National Tsing Hua Univ. (Taiwan)


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