Patent ID: 6892005
Filing Date: 2005-05-10
Classification: G02B,G02F

Abstract:
1. An integrated optical switch for coupling an input optical fiber to an output optical fiber, comprising: a substrate; a first waveguide formed on the substrate; a second waveguide formed on the substrate; an input port located at one end of the second waveguide for operatively receiving the input optical fiber; an output port located at the other end of the second waveguide for operatively receiving the output optical fiber; a first control electrode positioned proximate the first waveguide; a second control electrode positioned proximate the second waveguide; wherein the second waveguide is substantially straight; and, wherein the first waveguide has a bend proximate to the second waveguide such that a directional coupler is formed and wherein the first waveguide has a first end and a second end on the same sides of the substrate as the input port and the output port of the second waveguide respectively, and wherein the first and second waveguides are formed between the first and second control electrodes.