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:
Mar. 11, 2014
Filed:
Feb. 17, 2012
Zhong Shi, Dublin, CA (US);
Shing Lee, Fremont, CA (US);
Hongxing Yuan, San Ramon, CA (US);
Sergei Sochava, Sunnyvale, CA (US);
Ronald L. Allen, San Jose, CA (US);
Yunfei LI, Fremont, CA (US);
Michael Morelli, San Jose, CA (US);
Zhong Shi, Dublin, CA (US);
Shing Lee, Fremont, CA (US);
Hongxing Yuan, San Ramon, CA (US);
Sergei Sochava, Sunnyvale, CA (US);
Ronald L. Allen, San Jose, CA (US);
Yunfei Li, Fremont, CA (US);
Michael Morelli, San Jose, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
Systems and methods for increasing media absorption efficiency using interferometric waveguides in information storage devices are described. One such system for an interferometric waveguide assembly includes a light source, a first waveguide arm and a second waveguide arm, a splitter configured to receive light from the light source and to split the light into the first waveguide arm and the second waveguide arm, and a near field transducer (NFT) configured to receive the light from the first waveguide arm and the second waveguide arm, where the first waveguide arm and the second waveguide arm converge to form a preselected angle at a junction about opposite the splitter, and where the first waveguide arm and the second waveguide arm are configured to induce a preselected phase difference in the light arriving at the NFT.