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:
May. 26, 2009
Filed:
Jul. 17, 2007
Kazumasa Takabayashi, Kawasaki, JP;
Ken Morito, Kawasaki, JP;
Kazumasa Takabayashi, Kawasaki, JP;
Ken Morito, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In order to make it possible to suppress the influence of reflected light on a connection interface easily and with certainty, an optical waveguide device includes a first optical waveguide (), a second optical waveguide () formed from a material or in a structure different from that of the first optical waveguide () and connected to the first optical waveguide (), and a 1×1 multimode interference waveguide () formed by increasing the widths of the first optical waveguide () and the second optical waveguide () in the proximity of a connection interface between the first optical waveguide () and the second optical waveguide ().