Patent ID: 6501885
Filing Date: 2002-12-31
Classification: G02B

Abstract:
An optical waveguide coupler with a number of elongated narrow optical waveguide strips, each of which has a front area, a center area and a coupling area, in that the center area respectively comprises a transition area toward the corresponding front area, or toward the coupling area in such a way that the distance between two adjoining strips is greater in the front than the thickness of the narrow strips, and wherein the strips form a stack in the coupling area, characterized in that the optical waveguide coupler is constituted by a structure of a substrate with pits and of strips between the pits, and the strips in the form of the optical waveguide strips are comprised at least partially of a material of the substrate, or an optical waveguide material, constituting the optical waveguide strips, is embedded in the pits.