METHOD AND SYSTEM FOR CORRECTING AND MONITORING PHASE NOISE IN COHERENT OPTICAL MULTI-CARRIER SYSTEMS WITH CHROMATIC DISPERSION

Digital signal processing method and system for phase noise correction in a coherent optical channel multi-carrier optical system for signal transmission, wherein the multi-carrier system comprises an optical transmitter to emit two or more subcarriers and an optical receiver to receive said subcarr...

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Bibliographic Details
Main Authors NEPOMUCENO PEREIRA MONTEIRO, Paulo Miguel, PEREIRA GUIOMAR, Fernando Pedro, DOS SANTOS NEVES, Manuel
Format Patent
LanguageEnglish
French
German
Published 12.06.2024
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:Digital signal processing method and system for phase noise correction in a coherent optical channel multi-carrier optical system for signal transmission, wherein the multi-carrier system comprises an optical transmitter to emit two or more subcarriers and an optical receiver to receive said subcarriers; wherein the optical channel has chromatic dispersion, the laser of the emitter has phase noise, and the laser of the receiver has phase noise; wherein the digital signal processing system comprises an electronic data processor configured to obtain a receiver phase noise estimate through the linear combination of the transmitter phase noise and the receiver phase noise, when said linear combination is received at the receiver, and configured to obtain a transmitter phase noise estimate.
Bibliography:Application Number: EP20210729927