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Proceedings Paper

Comparative study of cubic crystals performance in bulk electro-optic sensor for DC and extra-low-frequency measurements
Author(s): Michael Bordovsky; Franjo Cecelja; Bala Balachandran
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Paper Abstract

An electric field sensor based on the linear electro-optic effect is described and the performances of available electro-optic cubic crystals are compared. The sensor sensitivity to an electric field is characterized by a new figure of merit evaluated using crystal data available. The intensity of electric field in the crystal is estimated using the approximation of the rectangular crystal shape by an ellipsoid of revolution. Crystal geometries appropriate for sensors with transverse and longitudinal electro-optic effects are suggested. Influence of the crystal conductivity and the photoconductivity on the sensor performance are investigated. These effects are found to influence the sensor performance if it is used for the dc and extra low frequency electric field measurements.

Paper Details

Date Published: 25 October 1996
PDF: 8 pages
Proc. SPIE 2839, Fiber Optic and Laser Sensors XIV, (25 October 1996); doi: 10.1117/12.255348
Show Author Affiliations
Michael Bordovsky, Brunel Univ. (United Kingdom)
Franjo Cecelja, Brunel Univ. (United Kingdom)
Bala Balachandran, Brunel Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 2839:
Fiber Optic and Laser Sensors XIV
Ramon P. DePaula; John W. Berthold, Editor(s)

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