Automatic level control circuit for optical system
US6392769B1 · kind B1 · utility
34Cited by
0References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2942
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Feedback instabilities arising from interactions between automatic control loops at the amplifier nodes of an optical network are eliminated by restricting operation to a single amplifier node at a time. Amplifier node activation is accomplished using a global control signal which is sequentially passed from an upstream node through all of the nodes of the system. By controlling the state of the global control signal, an upstream node has operational priority over downstream nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.