Laser diode drive circuit
US5734668A · kind A · utility
8Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1995 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Mar 5, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0683
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The lasing output of a laser diode (1) is controlled by the current through the diode (1). The laser diode (1) is driven by a switched mode drive circuit in which a pulsed signal is applied to a smoothing circuit, typically including a capacitor C and an inductor L, arranged to provide a smoothed output voltage whose magnitude depends on the pulse width of the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.