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. 16, 2015
Filed:
Sep. 10, 2013
Applicant:
International Business Machines Corporation, Armonk, NY (US);
Inventors:
Fuad E. Doany, Katonah, NY (US);
Frank R. Libsch, White Plains, NY (US);
Jeonghwan Song, White Plains, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/34 (2006.01);
U.S. Cl.
CPC ...
G02B 6/34 (2013.01); Y10T 29/49885 (2013.01);
Abstract
An apparatus for optical coupling comprises a substrate, a first waveguide formed on the substrate and includes a grating structure directing light in a first direction, and a second waveguide formed on the first waveguide and including an angled portion directing the light in a second direction different from the first direction.