Method and facility for equalizing an electric signal distorted due to interference in the optical domain
US6016379A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2569
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electrical equalizing facility for an electric input signal (S) which was derived from an optical signal (L) transmitted over an optical fiber and which is distorted due to interference in the optical signal (L) as a result of, e.g., polarization mode dispersion (PMD) comprises a number (n>1) of parallel-connected, different, variable electronic equalizers (E.sub.1, . . . , E.sub.i, . . . E.sub.i,m), which are supplied with the electric input signal (S), and a control unit (3) for selecting the electric output signal (S.sub.i) of the respective best equalizing electronic equalizer (E.sub.i) and for controlling the equalization parameters (E.sub.i,1, . . . , E.sub.i,m) of this equalizer in such a way that the quality (Q) of its equalized signal (S.sub.i) is optimized. This makes it possible to select the equalizer currently operating satisfactorily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.