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. 02, 2015
Filed:
Sep. 22, 2014
Seagate Technology Llc, Cupertino, CA (US);
Chubing Peng, Eden Prairie, MN (US);
Yi-Kuei Ryan Wu, Bloomington, MN (US);
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Abstract
A write head includes a three-dimensional waveguide extending along a light-propagation direction. The three-dimensional waveguide is configured to receive light from a light source at a fundamental transverse electric (TE) mode. The three-dimensional waveguide includes an input coupler, a curved middle section, and a terminating end. The input coupler is tapered between the light source and the curved middle section. The write head includes a dual-mode waveguide extending along the light propagation direction and has an edge proximate to and separated from the curved section by a gap at a coupling region. The three-dimensional waveguide excites a higher-order TE mode in the dual-mode waveguide via the coupling region.