Optical fiber communication system employing doped optical fiber and Raman amplification
US6711359B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1999 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Mar 10, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2916
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A lightwave communication system is provided that includes first and second optical transmitters/receivers remotely located with respect to one another. First and second optical transmission paths couple the first transmitter/receiver to the second transmitter/receiver for bidirectionally transmitting optical information therebetween. First and second doped optical fibers are respectively disposed in the first and second optical transmission paths. Optical pump energy is supplied by first and second optical pump sources. The first optical pump source generates Raman gain in the first transmission path and the second optical pump source generates Raman gain in the second transmission path. A first optical coupler is provided for optically coupling pump energy from the first pump source to the second-doped optical fiber and a second optical coupler is provided for optically coupling pump energy from the second pump source to the first doped optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.