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:
Feb. 06, 2024
Filed:
Jan. 04, 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); G02B 6/12 (2006.01); G02B 6/13 (2006.01);
U.S. Cl.
CPC ...
G02F 1/035 (2013.01); G02B 6/13 (2013.01); G02B 2006/1204 (2013.01);
Abstract
An optical device includes a substrate, a layered structure provided on the substrate and including an intermediate layer, an optical waveguide formed of a thin crystal film having an electro-optic effect, and a buffer layer stacked in this order, and an electrode provided on or above the buffer layer and configured to apply a direct current voltage to the optical waveguide. The resistivity of the intermediate layer is higher than the resistivity of the buffer layer.