Amplifier control
US6275328A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1999 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Jul 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2941
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for determining control signals of a filter for optimization of the gain profile of an amplifier, particularly though not exclusively for use in optical communications systems, and a system incorporating the same. The method is for calculating at least one control signal for at least one periodic filter arranged to alter the output gain profile of an amplifier, in which at least one of the phase and amplitude of the filter response are tuneable. The method includes the steps of: determining an error profile from the amplifier output gain profile and a predetermined target output gain profile; determining the dot product of the error profile and a first function of similar period and form to the response of the filter; determining the dot product of the error profile and a second function of similar period and form to the response of the filter, said second function being substantially orthogonal to said first; and determining at least one control signal for tuning of said filter from the calculated dot products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.