Title :
Parallel-plate integrated optic high-voltage sensor
Author :
Kingsley, S.A. ; Sriram, S.
Author_Institution :
SRICO Inc., Powell Court, OH, USA
fDate :
6/22/1995 12:00:00 AM
Abstract :
A high-voltage integrated optical Mach-Zehnder interferometric voltage sensing device is described. It uses the electro-optic effect in a lithium niobate crystal. Reverse poling of one arm of the interferometer is employed. This permits a simple parallel-plate electrode structure for push-pull modulation. The device was characterised at a wavelength of 1.3 μm, with a detected output power of 1 mW. For an interaction length of 2 mm, a minimum detectable voltage sensitivity of 0.25 mV in a 0-1 MHz bandwidth has been measured
Keywords :
dielectric polarisation; electro-optical devices; electrodes; integrated optics; light interferometry; optical sensors; sensitivity; voltage measurement; voltmeters; 1 mW; 1.3 mum; 2 mm; detected output power; electro-optic effect; high-voltage integrated optical Mach-Zehnder interferometric voltage sensing device; interaction length; interferometer; lithium niobate crystal; minimum detectable voltage sensitivity; parallel-plate electrode structure; parallel-plate integrated optic high-voltage sensor; push-pull modulation; reverse poling;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950743
