Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1990-02-02
1991-07-02
Wieder, Kenneth
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
324158D, 324158R, 350 9612, 350356, 356365, 356368, G01R 3100, G01R 2702
Patent
active
050292730
ABSTRACT:
An integrated optics Pockels cell for use in a voltage sensor includes a crystal exhibiting the electro-optic effect in which an integratd straight line wave guide substantially aligned with a z axis of the crystal is incorporated. The wave guide has two substantially orthogonal polarization axes substantially aligned with an x and y axis of the crystal respectively. In operation light polarized at a selected angle of orientation to the x and y axes of the crystal is applied to one end of the wave guide and polarized light leaving the wave guide and polarized along two substantially orthogonal axes one of which is at about the same orientation to the x and y axes as the polarized light entering the wave guide is detected to determine the electric field to which the sensor has been subjected. Preferably the sensor will include polarization maintaining optical fibers appropriately oriented to the wave guide for delivering and receiving polarized light to and from the wave guide.
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Nguyen Vinh P.
Rowley C. A.
The University of British Columbia
Wieder Kenneth
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