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:
Sep. 12, 2017
Filed:
May. 04, 2016
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventors:
Chubing Peng, Eden Prairie, MN (US);
Mark Ostrowski, Lakeville, MN (US);
Chang Xie, Rosemont, MN (US);
Tae-Woo Lee, Eden Prairie, MN (US);
Lisa M. Hanson, Eagan, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01); G02B 6/42 (2006.01); G02B 6/14 (2006.01); G02B 6/122 (2006.01); G02B 6/028 (2006.01); G02B 6/12 (2006.01); G11B 5/31 (2006.01);
U.S. Cl.
CPC ...
G02B 6/14 (2013.01); G02B 6/0283 (2013.01); G02B 6/1228 (2013.01); G02B 2006/12147 (2013.01); G11B 5/314 (2013.01);
Abstract
A waveguide a core extending along a light propagation and a coupling layer adjacent one side of the core along the light propagation direction. A gradient index material is adjacent to at least one side of the coupling layer. The gradient index material has a first refractive index proximate the coupling layer and a second refractive index away from the coupling layer. The gradient index material is configured to direct light from an input facet to the core layer.