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. 06, 2022
Filed:
Jul. 30, 2020
Applicant:
Seagate Technology Llc, Fremont, CA (US);
Inventors:
Vivek Krishnamurthy, Edina, MN (US);
Scott Eugene Olson, Eagan, MN (US);
Tyler Lenn Perry, Cottage Grove, MN (US);
John Charles Duda, Bloomington, MN (US);
Assignee:
Seagate Technology LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01); G11B 13/08 (2006.01); H01S 5/028 (2006.01); H01S 5/12 (2021.01); H01S 5/0683 (2006.01); H01S 5/14 (2006.01); G11B 5/00 (2006.01);
U.S. Cl.
CPC ...
G11B 13/08 (2013.01); H01S 5/028 (2013.01); H01S 5/06837 (2013.01); H01S 5/1215 (2013.01); H01S 5/141 (2013.01); G11B 2005/0021 (2013.01);
Abstract
A recording head includes an external cavity laser with an externally mounted part having an active region. The external cavity laser also includes a channel waveguide that delivers light towards a media-facing surface. A near-field transducer functions as a reflector, either alone or in combination with a Bragg grating in the channel waveguide. A reflective back facet of the externally mounted part and the reflector define a resonator of the external cavity laser.