Rx delay line inteferometer tracking in closed-loop module control for communication
US10826621B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Dec 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a communication signal tracking system comprising an optical receiver including one or more delay line interferometers (DLIs) configured to demultiplex incoming optical signals and a transimpedance amplifier configured to convert the incoming optical signals to incoming electrical signals. The communication signal tracking system further includes a control module configured to calculate a bit-error-rate (BER) of the incoming electrical signals before forward-error correction decoding, and use the BER as a parameter for optimizing settings of the one or more DLIs in one or more iterations in a control loop and generating a back-channel data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.