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:
Apr. 21, 1998
Filed:
Mar. 08, 1996
Tetsuya Saitoh, Tokyo, JP;
Fuji Electric Co., Ltd., Tokyo, JP;
Abstract
An optical star coupler that distributes the optical signal radiated from an optical fiber uniformly across the mixing means and couples the distributed optical signal efficiently to the other optical fibers. The optical star coupler includes: a bundling means including a plurality of optical fibers, the ends thereof being bundled, a flat plane formed by polishing the end faces of the optical fibers, and a light reflector formed on a part of the flat plane; a mixing means including a waveguide, the first end face thereof contacting with the flat plane and wide enough to cover the cores of the optical fibers; and a diffuser-reflector means arranged on the second end face of the waveguide.