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:
Oct. 06, 2020
Filed:
Jan. 14, 2019
Applicant:
Stmicroelectronics (Crolles 2) Sas, Crolles, FR;
Inventor:
Stephane Monfray, Eybens, FR;
Assignee:
STMicroelectronics (Crolles 2) SAS, Crolles, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/35 (2006.01); G02F 1/025 (2006.01);
U.S. Cl.
CPC ...
G02F 1/025 (2013.01); G02F 2202/104 (2013.01); G02F 2202/105 (2013.01); G02F 2203/50 (2013.01);
Abstract
An electro-optical phase modulator includes a waveguide made from a stack of strips. The stack includes a first strip made of a doped semiconductor material of a first conductivity type, a second strip made of a conductive material or of a doped semiconductor material of a second conductivity type, and a third strip made of a doped semiconductor material of the first conductivity type. The second strip is separated from the first strip by a first interface layer made of a dielectric material, and the third strip is separated from the second strip by a second interface layer made of a dielectric material.