Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive
US8670295B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2010 |
| Grant date | Mar 11, 2014 |
| Priority date | — |
| Expiry date | Apr 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for providing an energy assisted magnetic recording (EAMR) transducer coupled with a laser. The EAMR transducer has an air-bearing surface (ABS) configured to reside in proximity to a media during use. The EAMR transducer includes a write pole, at least one coil, a waveguide and an output device. The write pole is configured to write to a region of the media. The at least one coil is for energizing the write pole. The waveguide has an input optically coupled to the laser and configured to direct energy from the laser toward the ABS for heating the region of the media. The output device is optically coupled to the waveguide. The output device coupling out a portion of the energy not coupled to the media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.