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:
Jul. 12, 2022
Filed:
Jun. 26, 2018
Applicant:
The Trustees of Columbia University IN the City of New York, New York, NY (US);
Inventors:
Michal Lipson, New York, NY (US);
Aseema Mohanty, New York, NY (US);
Christopher T. Phare, New York, NY (US);
Moshe Zadka, Bronx, NY (US);
Samantha P. Roberts, Ithica, NY (US);
You-Chia Chang, New York, NY (US);
Assignee:
The Trustees of Columbia University in the City of New York, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/28 (2006.01); G02B 6/124 (2006.01); G02B 6/136 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G02B 6/2848 (2013.01); G02B 6/124 (2013.01); G02B 6/136 (2013.01); G02B 2006/12061 (2013.01);
Abstract
A millimeter scale weak grating coupler comprising a silicon waveguide having bars of overlay material of length (a) disposed periodically at a period (∧) adjacent the silicon waveguide whereby a uniform grating output is achieved.