Phase drift compensation for electric current sensor employing a twisted fiber or a spun highly birefringent fiber

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)803-809
Journal / PublicationIEEE Journal on Selected Topics in Quantum Electronics
Volume6
Issue number5
Publication statusPublished - Sep 2000

Abstract

We propose a simple, passive signal-processing scheme to compensate for arbitrary phase shift in a Faraday-effect current sensor employing a twisted fiber or a spun highly birefringent fiber. The scheme is based on processing the ac and dc components of the received signals with four detectors in a complementary manner to derive a stable signal that depends only on the Faraday rotation. The effectiveness of the scheme has been demonstrated with an experimental sensor for both twisted and spun highly birefringent fibers.

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