Variable gain erbium doped fiber amplifier
US7911684B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2008 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Apr 22, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2941
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and apparatuses are provided for variable gain optical fiber amplifiers. In one implementation, a variable gain optical amplifier is provided. The amplifier includes a first erbium doped fiber configured to receive an input optical signal, a second erbium doped fiber configured to output an output optical signal, a gain flattening filter positioned between the first erbium doped fiber and the second erbium doped fiber, a pump laser configured to provide energy to the first erbium doped fiber and the second erbium doped fiber, a thermo electric cooler configured to control a temperature of one or more of the first erbium doped fiber and the second erbium doped fiber, and a controller configured to adjust an output from the pump laser and a temperature of at least one of the first erbium doped fiber and the second erbium doped fiber to provide a variable flat spectral gain output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.