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:
Sep. 06, 2022
Filed:
Mar. 22, 2021
Sumitomo Electric Industries, Ltd., Osaka, JP;
Kosuke Fujii, Osaka, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
A method for measuring optical characteristics of a Mach-Zehnder type optical modulation device having an incident part, a waveguide for propagating light incident from the incident part, and a plurality of emitting parts each for emitting light. The method includes inputting light from a light source to the incident part of the optical modulation device through a first optical fiber, receiving emitted lights emitted from the plurality of emitting parts of the optical modulation device by a plurality of light receivers, obtaining a total value of currents by converting electric signals into currents and summing the currents, the electric signals being outputted by the plurality of light receivers receiving the emitted lights, and aligning the incident part of the optical modulation device and the first optical fiber based on the total value of currents.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile