Terminals having sub-band substitute signal control in optical communication systems
US6907195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2001 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Apr 19, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0279
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wavelength division multiplexed (WDM) optical network includes a plurality of optical transmitters, each optical transmitter generating a data signal sent over a respective one of a plurality of signal channels, the plurality of signal channels being divided into a number of sub-bands where each sub-band includes at least two signal channels, and a plurality of substitute signal transmitters, the number of substitute signal transmitters being equal to the number of sub-bands, each substitute signal transmitter generating a substitute signal which provides loading in a corresponding sub-band. The WDM optical network also includes a combining circuit which combines the data signals output from the plurality of optical transmitters and the substitute signals output from the plurality of substitute signal transmitters into a WDM signal, and an optical transmission fiber which receives the WDM signal from the combining circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.