The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 1989
Filed:
Oct. 29, 1987
Peter J Duthie, Northampton, GB;
Plessey Overseas Limited, Ilford, GB;
Abstract
An optical switch array comprises a plurality of optical switches of the kind utilizing the interaction between light propagating along one of two waveguide path sections in close proximity to one another and an electrical field produced by electric switching voltages applied between electrodes actively associated with the waveguide path sections in order to effect switching of the light from one of the waveguide path sections to the other. The waveguide path sections which provide links between the optical switches of the array and which require electrical isolation from one another have dissimilar physical or other characteristics in order to prevent coupling therebetween in the presence of a nearby electric field.