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:
Nov. 22, 2005
Filed:
Jan. 21, 2003
Akio Sugama, Kawasaki, JP;
Masayuki Kato, Kawasaki, JP;
Akio Sugama, Kawasaki, JP;
Masayuki Kato, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The waveguide-type optical device comprises a optical transmission element, an optical waveguideoptically connected to the optical transmission element, and a slab optical waveguideformed of an electrooptic material and optically connected to the optical waveguide. In the waveguide-type optical device, a mode field width of the optical waveguidehas a value which is between a mode field width of the optical transmission element and a mode field width of the slab optical waveguide, whereby the connection loss between the optical transmission element, such as an optical fiber, etc. and the slab optical waveguidecan be small.