The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 1994
Filed:
Dec. 18, 1992
Hideaki Hanaoka, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical waveguide device for optically coupling a semiconductor laser to an optical waveguide. An optical waveguide substrate having the optical waveguide therein is mounted on a smooth surface of a heat sink for the semiconductor laser on which surface the semiconductor laser is mounted so that a light entry end surface of the optical waveguide abuts against a light exit end surface of the semiconductor laser and that a surface of the optical waveguide substrate on the side where the optical waveguide is formed abuts against the smooth surface of the heat sink. Accordingly, accurate alignment between a light exit end of the semiconductor laser and a light entry end of the optical waveguide can be effected by a simple construction.