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Proceedings Paper

Fiber Optic Electric Field Sensor Configurations For High Bandwidth Lightning Research Measurement Applications
Author(s): B. N. Nelson; C. Menzel; T. G. DiGiuseppe
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Paper Abstract

A fiber optic electric field sensor for lightning research measurements based on the transverse electro-optic effect in Bi4(Ge04)3 electro-optic crystals (BGO) is described. The sensor is completely dielectric in composition and can monitor both electrib field strength and direction. The described sensor has a linear sensing range between 100 V/m and 1 x 107 V/m and an AC measurement bandwidth capability which approaches a 1 GHz which is more than adequate for lightning research. The effect of electro-optic crystal geometry on fiber optic sensor measurement range and measurement bandwidth is discussed. A method of utilizing a single electro-optic crystal to make two axis electric field directional measurements is described. A fiber optic electric field sensor configuration which incorporates two electro-optic crystals, and which is capable of measuring electric field direction is described. Sensor test data generated with both DC and AC applied electric fields is presented.

Paper Details

Date Published: 11 March 1987
PDF: 7 pages
Proc. SPIE 0720, High Bandwidth Analog Applications of Photonics, (11 March 1987); doi: 10.1117/12.937615
Show Author Affiliations
B. N. Nelson, Geo-Centers, Incorporated (United States)
C. Menzel, Geo-Centers, Incorporated (United States)
T. G. DiGiuseppe, Geo-Centers, Incorporated (United States)

Published in SPIE Proceedings Vol. 0720:
High Bandwidth Analog Applications of Photonics
James S. Chang, Editor(s)

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