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:
Jan. 16, 2024
Filed:
Sep. 30, 2020
Applicant:
Taiwan Semiconductor Manufacturing Company Limited, Hsin-Chu, TW;
Inventors:
Chih-Chang Lin, San Jose, CA (US);
Chan-Hong Chern, Palo Alto, CA (US);
Assignee:
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED, Hsin-Chu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01);
U.S. Cl.
CPC ...
G02F 1/011 (2013.01); G02F 1/0121 (2013.01);
Abstract
A directional coupler is configured to receive a continuous light waveform and split the waveform into two carrier signals. Ring modulators are configured to receive the carrier signals and binary data and modulate the carrier signals based on the binary data. A combiner is configured to combine the modulated carrier signals into a four-level pulse amplitude modulation (PAM4) signal.