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:
Dec. 16, 2025
Filed:
Sep. 29, 2021
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Kenji Nagase, Hong Kong, CN;
Hiroshi Take, Hong Kong, CN;
Anthony Reymund Melad Binarao, Hong Kong, CN;
Cheng Bu Heng, Hong Kong, CN;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/035 (2006.01); G02B 6/12 (2006.01); G02B 6/132 (2006.01); G02F 1/03 (2006.01); G02F 1/21 (2006.01); G02F 1/225 (2006.01);
U.S. Cl.
CPC ...
G02F 1/035 (2013.01); G02F 1/212 (2021.01); G02F 1/225 (2013.01); G02B 2006/1204 (2013.01); G02B 2006/12045 (2013.01); G02B 2006/12142 (2013.01); G02B 6/132 (2013.01); G02F 2202/20 (2013.01);
Abstract
An optical modulator, including: a substrate; a plurality of electro-optic material layers formed on the substrate; and an electrode formed on the electro-optic material layer; wherein the electro-optic material layer has a patterned RF portion waveguide that applies a modulated signal and a patterned DC portion waveguide that applies a direct current bias signal; and on a section perpendicular to a light propagation direction, the sectional area of the DC portion waveguide is greater than the sectional area of the RF portion waveguide.