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.:

US 8577193 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 05, 2013

Filed:

Feb. 03, 2011
Applicant:

Lifu Zhou, Eden Prairie, MN (US);

Inventor:

Lifu Zhou, Eden Prairie, MN (US);

Assignee:

Seagate Technology LLC, Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus includes a waveguide, a laser diode positioned adjacent to the waveguide and having an active region producing light in a plane substantially parallel to a plane of the waveguide, a first grating positioned to couple light out of the laser diode and to direct the light toward the waveguide, a reflective layer positioned adjacent to a side of the first grating opposite to the waveguide, and a second grating having the same period as the first grating and positioned to couple light into the waveguide. A data storage device that includes the apparatus is also provided.


Find Patent Forward Citations

Zhou, Lifu. (2013). Grating assisted surface emitter laser coupling for heat assisted magnetic recording (U.S. Patent No. 8577193). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8577193

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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