Two section blue laser diode with reduced output power droop
US6526083B1 · kind B1 · utility
44Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06251
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A III-V nitride blue laser diode has an amplifier region and a modulator region. The amplifier region has a constant current to keep the region near the lasing threshold. The modulator region has a small varying forward current or reverse bias voltage which controls the light output of the laser. This two section blue laser diode requires much lower power consumption than directly modulated lasers which reduces transient heating and “drooping” of the light output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.