Semiconductor laser output control circuit
US4835780A · kind A · utility
22Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1988 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Sep 7, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06808
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor laser output control apparatus for controlling a drive current to be supplied to a semiconductor laser which is turned on and off so as to maintain a light output from the semiconductor laser at constant. At the rising edge when the semiconductor laser is turned on, constant current supplied from a constant current source to the semiconductor laser is corrected by correction current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.