Patent ID: 6473547
Filing Date: 2002-10-29
Classification: G02F

Abstract:
An optical component comprising:a substrate; first and second optical waveguides formed in respective first and second spaced apart surface portions of said substrate; a first electrically insulating buffer layer formed on said substrate so as to overlie said first surface portion of said substrate; a second electrically insulating buffer layer formed on a third surface portion of said substrate between and spaced apart from said first and second surface portions of said substrate and from said first buffer layer; a first ground electrode formed on said first buffer layer so as to overlie said first optical waveguide, and being spaced apart from an edge of said first buffer layer and not being electrically connected to said substrate; a signal electrode formed on said second buffer layer so as to overlie part of said third surface portion of said substrate, and being spaced apart from edges of said second buffer layer and not electrically connected to said substrate; and a second ground electrode formed directly on and thereby contacting a fourth surface portion of said substrate spaced apart from said third surface portion, such that said second surface portion of said substrate lies between said third and fourth surface portions of said substrate.