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:
Jun. 27, 2023
Filed:
Aug. 09, 2021
Applicant:
Marvell Asia Pte, Ltd., Singapore, SG;
Inventors:
Assignee:
MARVELL ASIA PTE LTD, Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/225 (2006.01); G02F 1/21 (2006.01); G02B 6/134 (2006.01);
U.S. Cl.
CPC ...
G02F 1/2257 (2013.01); G02B 6/1347 (2013.01); G02F 1/212 (2021.01);
Abstract
A silicon optical modulator includes a silicon-on-insulator substrate and a first waveguide and a second waveguide arranged parallel to each other in the silicon-on-insulator substrate. The first waveguide includes a first PN junction. The second waveguide includes a second PN junction. At least one of the first PN junction and the second PN junction is disposed at an interface between a P type doped region and a N type doped region. The interface has an irregular shape that is not perpendicular to a plane in which the silicon-on-insulator substrate lies.