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. 20, 2023
Filed:
May. 02, 2022
Applicant:
Ciena Corporation, Hanover, MD (US);
Inventors:
Alexandre Delisle-Simard, Québec, CA;
Yves Painchaud, Québec, CA;
Assignee:
Ciena Corporation, Hanover, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/025 (2006.01); G02F 1/015 (2006.01);
U.S. Cl.
CPC ...
G02F 1/025 (2013.01); G02F 1/0156 (2021.01); G02F 2202/06 (2013.01); G02F 2202/105 (2013.01);
Abstract
A silicon modulator where the doping profile varies along the lateral and/or longitudinal position in the transition zones to achieve improved performance in terms of either optical attenuation or contact access resistance or both. A silicon-based modulator includes a waveguide including a contact region and a core region, wherein the waveguide includes a dopant concentration that decreases from the contact region to the core region in a transition zone according to a doping profile that is variable.