Apparatus and method for driving multiple lasers
US9300113B2 · kind B2 · utility
7Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2012 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Jan 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4018
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser device includes a plurality of lasers that includes a first laser and a second laser. The laser device further includes a drive circuit configured to apply a pulsed current to the first laser at a first phase. The drive circuit is further configured to apply the pulsed current to the second laser at a second phase. The first phase and the second phase are different. A total voltage provided to the plurality of lasers during a period between the first and second phases is substantially smaller than a sum of individual voltages provided to the plurality of lasers, respectively, during a pulse period of the pulsed current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.