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:
Jul. 01, 2025
Filed:
Jun. 28, 2022
Applicant:
Seagate Technology Llc, Fremont, CA (US);
Inventors:
Vivek Krishnamurthy, Eden Prairie, MN (US);
Scott Eugene Olson, Eagan, MN (US);
Jiaoming Qiu, Maple Grove, MN (US);
Assignee:
SEAGATE TECHNOLOGY LLC, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/14 (2006.01); G02B 6/10 (2006.01); G11B 5/00 (2006.01); G11B 5/31 (2006.01);
U.S. Cl.
CPC ...
G02B 6/10 (2013.01); G02B 6/14 (2013.01); G11B 2005/0021 (2013.01); G11B 5/314 (2013.01);
Abstract
A hard disk drive (HDD) includes a heat-assisted magnetic recording (HAMR) head. The HAMR head includes one or more features comprising a laser device that is a heterogeneous integrated epitaxial grown GaAS laser. The laser device couples directly with a waveguide that transfers the electromagnetic radiation generated by the laser device to a near field transducer. The device includes an N-doped layer for coupling the output of the GaAs active layer to the waveguide.