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:
Jun. 03, 2025
Filed:
Jan. 11, 2022
Sumitomo Electric Industries, Ltd., Osaka, JP;
Tsutomu Ishikawa, Osaka, JP;
Naoya Kono, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A method for manufacturing an optical modulator is disclosed. The optical modulator includes a Mach-Zehnder modulator, the Mach-Zehnder modulator including an electrode and an arm waveguide, the electrode being provided on the arm waveguide. The method includes a step of preparing the Mach-Zehnder modulator, a step of acquiring a relationship between a voltage applied to the electrode and a phase change amount of light propagating through the arm waveguide based on a light transmittance in the arm waveguide, a step of acquiring a voltage in which a range of a phase change amount of light in the Mach-Zehnder modulator has a predetermined range based on the relationship, and a step of storing the voltage in a storage unit.