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:
Sep. 02, 1997
Filed:
Apr. 05, 1996
Hiroki Okushima, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
The invention provides an optical waveguide structure suitable for use, for example, with a wavelength division multiplex transmission system for optical communication, which can be produced by a simple process and realizes a wavelength separation action of a high performance with a reduced propagation loss of light without provision of a gap between waveguides. The optical waveguide structure includes a first optical waveguide, a second optical waveguide including a pair of optical waveguides, and an intermediate optical waveguide for connecting the first optical waveguide and the second optical waveguide to each other. The intermediate optical waveguide is capable of propagating light of a high order mode therein.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile