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:
Feb. 19, 2013
Filed:
Apr. 05, 2012
Thomas Dudley Boone, Jr., San Jose, CA (US);
Timothy Carl Strand, San Jose, CA (US);
Bruce David Terris, Sunnyvale, CA (US);
Thomas Dudley Boone, Jr., San Jose, CA (US);
Timothy Carl Strand, San Jose, CA (US);
Bruce David Terris, Sunnyvale, CA (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
A laser, such as a horizontal cavity surface emitting laser, with internal polarization rotation may be used in thermally assisted recording in hard disk drives. The desired polarization of the laser may be accomplished with two beam reflections off of facets within the laser. The facets may be formed in a single ion beam etching step. The laser may be used on a thermally assisted recording head to produce a polarized beam that is aligned with a track direction of the disk.