Heat assisted media recording apparatus with laser diode mode hopping suppression
US9418691B2 · kind B2 · utility
19Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2015 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Apr 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a slider body, a laser diode, an optical path, and a heating element. The laser diode is configured to produce energy and is subject to temperature changes as a result of producing energy. The optical path within the slider body is configured to deliver the energy to heat a magnetic recording medium. The heating element is disposed along a length of the optical path within the slider body and is configured to control a temperature of the optical path to mitigate temperature-induced mode hopping of the laser diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.