Optical amplification device with automatic gain control
US7016105B2 · kind B2 · utility
3Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2003 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Apr 21, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/296
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of automatic gain control for use in an optical amplification device comprising a variable optical attenuator and an optical amplifier connected downstream of the optical attenuator includes the steps of measuring the power at the input of the amplification device, determining the number of channels at the input of the amplification device as a function of the measured power knowing the attenuation value of a span upstream of the device, and modifying the gain of the amplifier as a function of the number of channels determined in this way.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.