Fiber optic electric current measurement employing two metal-coated fibers: bandwidth improvement

Jin-Chia Kuo; Likarn Wang

doi:10.1117/1.601846

1 May 1998 Fiber optic electric current measurement employing two metal-coated fibers: bandwidth improvement

Jin-Chia Kuo, Likarn Wang

Optical Engineering, Vol. 37, Issue 5, (May 1998). https://doi.org/10.1117/1.601846

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.

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Jin-Chia Kuo and Likarn Wang "Fiber optic electric current measurement employing two metal-coated fibers: bandwidth improvement," Optical Engineering 37(5), (1 May 1998). https://doi.org/10.1117/1.601846

Published: 1 May 1998

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