Light-receiving structure for waveguide type optical devices

Details Light-receiving structure for waveguide type optical devices Light-receiving structure for waveguide type optical devices

G - Physics

02

B

G02B 6/26 (2006.01) G02B 6/28 (2006.01) G02B 6/30 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2139086

A light-receiving structure for waveguide-type optical devices exhibits excellent productivity, is compactly-formed, and permits highly- efficient coupling. A recess is provided in part of the surface of a substrate on which an optical waveguide is formed, and a light-receiving element is mounted on the recess, with its light-receiving face upward. Near the recess is formed in advance an end face of the optical waveguide, so that a light is emitted therefrom. On the other hand, over the substrate is arranged a cover in which a groove is formed in a position opposite to the optical waveguide, and a reflector is formed in a position opposite to the light-receiving element. The light emitted from the optical waveguide is reflected by the reflector and coupled to the light-receiving element. A through-hole can be bored in the substrate in advance so that the packaging density can be improved by mounting the light-receiving element on the underside of the substrate with the light-receiving face of the light-receiving element being directed toward the through-hole.

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