Magneto-optical recording device having an optical head capable of generating a circularly polarized light beam
US5448536A · kind A · utility
17Cited by
9References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1993 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Jun 15, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/18355
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magneto-optical recording and reproducing apparatus, a magnetic field is applied to a laser source in the direction of extension of the optical axis of the laser source to radiate a circularly polarized light beam. A magneto-optical disk has a quantum well structure and records information on the disk with the circularly polarized light beam in a magneto-optical manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.