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:
Mar. 20, 2007
Filed:
Sep. 29, 2004
Applicants:
Dan-xia Xu, Gloucester, CA;
Pavel Cheben, Ottawa, CA;
Dan Dalacu, Ottawa, CA;
Siegfried Janz, Gloucester, CA;
Inventors:
Dan-Xia Xu, Gloucester, CA;
Pavel Cheben, Ottawa, CA;
Dan Dalacu, Ottawa, CA;
Siegfried Janz, Gloucester, CA;
Assignee:
National Research Council of Canada, Ottawa, CA;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order to make a photonic device incorporating a waveguide, a waveguide is formed with a predetermined geometry. Birefringence is then controlled by determining the amount of stress induced within the waveguide.