Transmission system with cross-phase modulation compensation
US6124960A · kind A · utility
45Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1997 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Sep 8, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2557
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a WDM transmission system carrying amplitude modulated traffic in which significant cross-phase modulation occurs, each of the individual channels is pre-chirped at the transmitter with replicas, or low-pass filtered replicas of the amplitude modulation applied to each of the other channels. Prechirping of each individual channel with a replica of the amplitude modulation applied to that channel may be added in order additionally to provide compensation for self-phase modulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.