Adaptive laser diode driver and method
US7356058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Jul 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06808
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An adaptive laser diode driver capable of driving various laser diode types as well different laser diodes from the same type, while ensuring optimal optical performance over the lifetime and temperature change of the diode. The driver adaptively changes the voltage level of input data signals to achieve full current switching as well as short rise time (tr) and fall time (tf) in extreme modulation conditions. This is preformed by constantly monitoring the output signal of a laser diode. Based on the monitored signal a modulation current is adjusted and in response the low level and high level of the input data signals are set. In accordance with one embodiment, the adaptive laser diode driver can be integrated in an optical line terminal (OLT) or an optical network unit (ONU) of a passive optical network (PON).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.