Pumping source having a plurality of regulated pump lasers for broadband optical amplification of WDM signal
US6704136B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Mar 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/10069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pumping source with a number of regulated pump lasers for broadband optical amplification of a WDM signal is provided, wherein, the powers of the pump lasers that exhibit different wavelengths are regulated such that all the channels of a WDM signal exhibit a flat profile of their levels at the end of the transmission fiber and in the event of a defect and, particularly, in the event of a failure or a partial failure of the pump lasers, the corresponding change in the gain profile is automatically compensated for by a supervisory regulation device for resetting the pumping powers in the event of a failure report, thereby resulting in a minimal change in the gain spectrum of all the channel levels of a WDM signal in the event of defective operation of the pumping source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.