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:
Nov. 13, 2018
Filed:
Jun. 30, 2015
Stmicroelectronics SA, Montrouge, FR;
Stmicroelectronics (Crolles 2) Sas, Crolles, FR;
Jean-Robert Manouvrier, Echirolles, FR;
Jean-Francois Carpentier, Grenoble, FR;
Patrick Lemaitre, Biviers, FR;
STMICROELECTRONICS SA, Montrouge, FR;
STMICROELECTRONICS (CROLLES 2) SAS, Crolles, FR;
Abstract
An electro-optic device may include a photonic chip having an optical grating coupler at a surface. The optical grating coupler may include a first semiconductor layer having a first base and first fingers extending outwardly from the first base. The optical grating coupler may include a second semiconductor layer having a second base and second fingers extending outwardly from the second base and being interdigitated with the first fingers to define semiconductor junction areas, with the first and second fingers having a non-uniform width. The electro-optic device may include a circuit coupled to the optical grating coupler and configured to bias the semiconductor junction areas and change one or more optical characteristics of the optical grating coupler.