Apparatus and method for monitoring signal quality of a modulated optical signal
US9729244B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jan 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/615
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmitter with at least one optical modulator adapted to modulate the optical signal output by a laser source to generate a modulated optical signal, wherein the optical signal output by the laser source is tapped and supplied to a monitoring circuit comprising an optical front end configured to select signal components of the tapped modulated optical signal and to convert the selected signal components of the tapped modulated optical signal into analog signals, and comprising at least one analog-to-digital converter, ADC, adapted to perform equivalent-time sampling of the analog signals to provide digital signals processed by a processing unit to monitor signal quality of the modulated optical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.