Patent ID: 7113671
Filing Date: 2006-09-26
Classification: G02B

Abstract:
1. An optical coupling device for coupling light to a core of an optical waveguide device, comprising: a waveguide connecting a first end and a second end opposite the first end of the optical coupling device, for serving as a transmission path of incident light through the optical coupling device, the optical coupling device having the first end connected to the core of the optical waveguide device and the second end convex in shape; and a cladding surrounding the waveguide, wherein the waveguide and the cladding are formed from a single UV-sensitive mixture, and the waveguide has a higher refractive index than the cladding, by irradiating UV light onto a part of the UV-sensitive mixture at a first stage and irradiating UV light onto a remaining non-cured portion at a second stage.