Laser diode driver having automatic power control with smooth enable function
US5802089A · kind A · utility
80Cited by
11References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Oct 22, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser diode driver with automatic power control in which start-up characteristics are controlled to avoid unsafe power levels at a driven laser is disclosed. The laser diode driver according to the invention produces a bias control signal that controls a bias current source such that the bias current supplied to the laser is maintained below a predetermined level during a start-up period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.