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:
Aug. 19, 2025
Filed:
May. 24, 2022
Applicant:
Taiwan Semiconductor Manufacturing Company, Hsinchu, TW;
Inventors:
Tai-Chun Huang, New Taipei, TW;
Stefan Rusu, Sunnyvale, CA (US);
Assignee:
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/42 (2006.01); G02B 5/18 (2006.01);
U.S. Cl.
CPC ...
G02B 27/4244 (2013.01); G02B 5/1857 (2013.01); G02B 27/4272 (2013.01);
Abstract
A photonic vertical grating filter is disclosed. The filter comprises a first waveguide, a second waveguide, and a plurality of Bragg gratings. The Bragg gratings are formed in a dielectric layer between the first waveguide and the second waveguide, and are located in a vertical overlap region between the first waveguide and the second waveguide. Each Bragg grating has a different grating period. The vertical filter uses less surface area and provides improved filtering capabilities.