Raman amplifier with a number of pump sources
US6728029B2 · kind B2 · utility
2Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2001 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Nov 14, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A Raman amplifier with a number of pump lasers whose pump signals are regulated. In order to improve the frequency stability, the pump lasers are followed by optical filters. Polarization mixers produce a constant gain for different polarizations of a WDM signal. Matching to different transmission conditions and to a different number of transmission bands can be carried out via a controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.