Patent ID: 9341776
Filing Date: 2016-05-17
CPC Classification: G02B,H01L,H01S

Claim Text:
1. An optical interconnection device, comprising: a ring-shaped light-emitting element and a disk-shaped light-receiving element, both with the ring-shaped light-emitting element and the disk-shaped light-receiving element having at least a portion with a same layered structure and being formed on a silicon substrate, at least a portion of the ring-shaped light-emitting element being embedded in an insulator, at least a portion of the disk-shaped light-receiving element being embedded in the insulator; and an optical waveguide being formed over the insulator, the optical waveguide being optically coupled to the ring-shaped light-emitting element and the disk-shaped light-receiving element by distributed coupling, wherein at least a part of the optical waveguide which is optically coupled to the disc-shaped light-receiving element consists of amorphous silicon and is in a spiral, the ring-shaped light-emitting element includes an active layer, the disc-shaped light-receiving element includes a light-absorbing layer, and the active layer of the ring-shaped light-emitting element and the light-absorbing layer of the disc-shaped light-receiving element are in the portion with the same layered structure and at a same height above the silicon substrate.