Optical node including three-stage optical amplifier with automatic gain and level control
US6621625B1 · kind B1 · utility
12Cited by
18References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Dec 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2513
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical node and method for operation in an ultra long haul backbone network that provides DWDM optical transmission and wavelength networking functionalities are disclosed. The optical node is designed with capabilities for amplification, dispersion compensation, and add/drop functionalities. In one embodiment, three erbium-doped fiber amplifier (EDFA) are cascaded using low nonlinearity and low loss dispersion compensating module (DCM).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.