Semiconductor laser device and circuit for and method of driving same
US8265112B2 · kind B2 · utility
1Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2010 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Jun 6, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A directly driven laser includes multiple contacts, with at least one of the contacts for injecting current into the laser such that the laser reaches at least a lasing threshold and at least one of the contacts for providing a data signal to the laser. In some embodiments a differential data signal is effectively provided to a front and a rear section of the laser, while lasing threshold current is provided to a central portion of the laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.