Methods and apparatuses for measuring and controlling a laser output in a passive optical network
US6792018B2 · kind B2 · utility
2Cited by
15References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jul 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06835
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides apparatuses and methods for measurement and control of a laser in a passive optical network. In particular, prior to receiving a transmission grant, the laser is pre-driven at a current below a predetermined threshold to “pre-charge” the laser. Also, during the zero level measurement interval, the laser is driven at a non-zero level and the required zero level current is calculated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.