Raman optical amplifiers
US6624927B1 · kind B1 · utility
19Cited by
17References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | May 29, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Raman amplifier equipment for fiber-optic communications links is provided. Raman pump light at a first wavelength or wavelengths may be used to optically pump fiber in a communications link to produce Raman gain. Raman pump light at a second wavelength or wavelengths may be used to optically pump the fiber to produce Raman gain for channels at different wavelengths in the communications link. The Raman gain produced by the pump light at the first wavelength or wavelengths increases the reach of the Raman pump light at the second wavelength or wavelengths into the fiber to improve the noise figure of the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.