Patent ID: 7248768
Filing Date: 2007-07-24
Classification: G02B,H01L

Abstract:
1. An optical interconnection module comprising: a substrate on which electrode pads and a predetermined circuit pattern are formed; a light source unit provided on the substrate and configured to generate an optical signal and emit the signal to an optical waveguide; an optical detection unit for receiving the optical signal from the light source unit and converting the optical signal into an electric signal; drive units provided on the substrate and configured to drive the light source unit and the light detection unit in response to electric signals supplied through the electrode pads; and the optical waveguide including a cladding layer, a core layer covered with the cladding layer, and an elliptical reflecting mirror surface formed at an end of the core layer, which reflects and focuses light incident from the light source unit wherein an incident angle θ of the light incident from a light source of the light source unit, that is, a light transmission device, is determined by the following Equation: PF is a distance from a point of an ellipse to a focal point F, PF′ is a distance from the point of the ellipse to a focal point F′, and FF′ is a distance between the focal points.