Patent ID: 7221816
Filing Date: 2007-05-22
Classification: G02B,H01L,H01S

Abstract:
1. A substrate for mounting an optical element having a light emission/reception part, the substrate comprising: a base material having first and second planes; and an optical waveguide penetrating through the base material from the first plane to the second plane, in a direction perpendicularly intersecting the optical element mounted on top of the first plane, the optical waveguide being positioned opposite to the light emission/reception part; wherein the base material is formed of silicon, and wherein the optical waveguide has first and second ends that protrude from the first and second planes and are polished to be flush with respect to the first and second planes prior to mounting the optical element to the substrate; wherein the distance between the polished first and second ends is substantially equal to the thickness of the substrate when mounting the optical element to the substrate.