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.:

US 9411106 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 09, 2016

Filed:

Sep. 30, 2014
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Fuad E. Doany, Katonah, NY (US);

Frank R. Libsch, White Plains, NY (US);

Daniel P. Morris, Yorktown Heights, NY (US);

Jeonghwan Song, Heverlee, BE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/34 (2006.01);
U.S. Cl.
CPC ...
G02B 6/34 (2013.01);
Abstract

A grating structure has a plurality of gratings. In one example, one or more of the gratings are configured: to be non-uniformly spaced with respect to one or more other ones of the gratings; and to optically couple a first light conduit and a second light conduit enabling light having a first polarization and light having a second polarization to pass through the grating structure and propagate in the same direction in the first light conduit or the second light conduit. The non-uniform spacing of the gratings may represent an intersection or a union of a period associated with the light having the first polarization and a period associated with the light having the second polarization.


Find Patent Forward Citations

Doany, Fuad. (2016). Polarization-independent grating coupler for silicon on insulator (U.S. Patent No. 9411106). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9411106

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