Twist fibre and its application in electric current sensor with compensation of arbitrary bias phase varying

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journalNot applicable

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Original languageEnglish
Pages (from-to)536-543
Journal / PublicationProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1999
Externally publishedYes


TitleProceedings of the 1998 International Conferenceon Fiber and Photonics
CityNew Dehli, India
Period14 - 18 December 1998


Design, fabrication and application of twisted fiber for polarized light transmission and electric current sensor are presented in the paper. A characterization parameter of twist fibre is proposed for the design of twisted fibre for linearly or circularly polarized light transmission. The problem of employing twisted fibre in current sensor, e.g., the temperature or polarization perturbation induced sensor bias drifting, is overcome by a novel signal processing method with a modified optical arrangement for ac current detection. Experimental results show the compensation method is effective to arbitrary bias phase drifting in electrical current sensor using twisted fibre.