Title :
Reduction of temperature and vibration sensitivity of a polarimetric current sensor
Author :
Lizet, J. ; Valette, S. ; Langeac, D.
Author_Institution :
Groupe Optique Guidée, LETI, Commissariat Ã\xa0 I´Energie Atomique, Grenoble, France
Abstract :
We present a new type of Faraday-effect current sensor using a twisted single-mode fibre as the probe. The temperature drift is cancelled by a `double-twist¿ configuration, and the sensitivity to vibrations and bends is drastically reduced by use of polarisation-maintaining fibres as the input and output connecting leads.
Keywords :
Faraday effect; electric current measurement; fibre optics; magneto-optical devices; Faraday-effect current sensor; polarimetric current sensor; polarisation-maintaining fibres; probe; temperature drift; temperature sensitivity; twisted single-mode fibre; vibration sensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830394
