Pumping source with a number of pumping lasers for the raman amplification of a WDM signal with minimized four-wave mixing
US6870665B2 · kind B2 · utility
1Cited by
5References
16Claims
0Family size
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Key dates
| Filing date | Oct 31, 2002 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Dec 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pumping source is provided for the Raman amplification of an optical wavelength division multiplex signal, wherein the pumping source has a number of pumping lasers with, in each case, different pumping wavelengths. Modules for the angle and/or amplitude modulation of pumping signals of the pumping lasers are connected to the pumping lasers, such that by appropriate adaptation of the modulation of the pumping signals mixing products from four-wave mixing between the pumping signals are suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.