Method and apparatus for controlling the optical power of an optical transmission signal
US6580539B1 · kind B1 · utility
1Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1999 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Oct 8, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/02212
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention generally relates to the field of optical transmission and particularly to a method and an apparatus for controlling the optical power of an optical transmission signal in a wavelength division multiplex optical transmission system (WDM system). The optical power of a control channel is controlled to keep the total optical power of the optical transmission signal constant. The present invention avoids the deleterious effects of stimulated Brillouin Scattering by spreading the power density spectrum of the optical control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.