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. 21, 2021
Filed:
Dec. 04, 2019
Applicant:
Stmicroelectronics (Crolles 2) Sas, Crolles, FR;
Inventors:
Patrick Le Maitre, Biviers, FR;
Nicolas Michit, Grenoble, FR;
Assignee:
STMICROELECTRONICS (CROLLES 2) SAS, Crolles, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/293 (2006.01); G02B 6/12 (2006.01); G02F 1/225 (2006.01);
U.S. Cl.
CPC ...
G02B 6/2934 (2013.01); G02B 6/12007 (2013.01); G02F 1/225 (2013.01); G02B 2006/12061 (2013.01); G02F 2203/15 (2013.01);
Abstract
A ring resonator electro-optical device includes a first silicon nitride waveguide and a second annular silicon waveguide that comprises a first section running under a second section of the first waveguide. The second waveguide also includes an annular silicon strip having a cross-section increasing in the first section from a minimum cross-section located under the second section.