Optical coupling structure

Details Optical coupling structure Optical coupling structure

2006-04-26

2008-11-18

Font, Frank G (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S014000, C385S015000, C385S031000, C385S039000, C385S049000, C385S129000, C385S130000, C385S131000

Reexamination Certificate

active

07454102

ABSTRACT:
An optoelectronic coupling structure, a method of manufacture, and a method of operation are described. The optical coupling structure includes a waveguide that is formed within a device layer of an SOI substrate. A prism is located on a bottom side of the SOI substrate. A BOX layer of the SOI substrate, which is interposed between the prism and the waveguide, serves as a spacer region, which promotes an optical coupling of the prism to the waveguide. By positioning the prism below the waveguide, an optoelectronic IC may more readily accommodate a prism. The prism may be directly fabricated in a bulk layer of the SOI substrate or directly bonded to a bottom side surface of the BOX layer.

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