WDM Optical communication systems with remodulators and remodulating channel selectors
US5784184A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Jun 24, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0307
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a WDM optical communication system with remodulators at the transmission input and remodulating channel selectors adjacent the optical receivers, providing complete control over the interfaces with optical transmission equipment. In an exemplary embodiment, the WDM system includes optical transmitters which input transmitted optical signals into optical remodulators. The optical remodulators place the information from each of the transmitted signals onto separate optical channels in the WDM system channel plan. The optical channels are multiplexed onto an optical waveguide. At the receive end, remodulating channel selectors each receive a portion of the WDM optical signal, select a particular optical channel, and place the information from the selected channel onto a newly-generated optical signal. This newly-generated optical signal is output to a receiver or to a further WDM optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.