Semiconductor laser device and circuit for and method of driving same
US8913638B2 · kind B2 · utility
1Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2012 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2032 |
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.