Optical power managed network node for processing dense wavelength division multiplexed optical signals
US6449068B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Mar 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0058
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A technique for processing dense wavelength division multiplexed optical signals in a network node is disclosed. In one embodiment, the technique is realized as an optical power managed network node comprising a dense wavelength division multiplexing device for combining a plurality of narrowband optical signals into a multiplexed polychromatic optical signal. The optical power managed network node also comprises a wavelength-selective optical power detector for detecting the power of each of the plurality of narrowband optical signals combined into the multiplexed polychromatic optical signal. The optical power managed network node further comprises a plurality of attenuators for attenuating the power of at least one of the plurality of narrowband optical signals based upon the detected power of each of the plurality of narrowband optical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.