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:
Jul. 02, 2024
Filed:
Jul. 12, 2022
Applicant:
Fujitsu Optical Components Limited, Kawasaki, JP;
Inventor:
Masaki Sugiyama, Kawasaki, JP;
Assignee:
FUJITSU OPTICAL COMPONENTS LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/035 (2006.01); G02F 1/21 (2006.01); G02F 1/225 (2006.01);
U.S. Cl.
CPC ...
G02F 1/0356 (2013.01); G02F 1/212 (2021.01); G02F 1/2255 (2013.01);
Abstract
An optical device includes an optical waveguide that is a rib type and that is formed of a thin film lithium niobate (LiNbO: LN) substrate using a thin film LN crystal, and a buffer layer that is laminated on the optical waveguide. Furthermore, the optical device includes an electrode that is laminated on the buffer layer and that applies a voltage to the optical waveguide, and a gettering site that is disposed parallel to the optical waveguide and that traps an electric charge inside the optical waveguide.