Laser diode, optical disk device and optical pickup
US8615027B2 · kind B2 · utility
2Cited by
6References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 14, 2009 |
| Grant date | Dec 24, 2013 |
| Priority date | — |
| Expiry date | Jul 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/32341
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser diode capable of performing self-pulsation operation, and capable of sufficiently reducing the coherence of laser light and stably obtaining low-noise laser light is provided. A laser diode includes: a laser chip including at least one laser stripe which extends in a resonator length direction between a first end surface and a second end surface opposed to each other, in which the laser stripe includes a gain region and a saturable absorption region in the resonator length direction, and the width of the laser stripe in the saturable absorption region is larger than the width of the laser stripe in the gain region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.