Project Details
Projekt
Arbitrary waveform generator for optical transmission systems
Subject Area
Electrical Engineering and Information Technology
Term
Funded in 2024
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 541761243
Optical transmission systems with very high symbol rates are the basis for transporting high bitrate data on the Internet. Depending on the range, different data rates are used here. The highest speeds (>>100 GBaud) are required in short-range transmission - for example within data centers. Depending on the application, the modulation formats range from high-level pulse amplitude modulation (e.g., PAM-4) for short-haul transmission to high-level (quaternary) optical modulation methods (e.g., 64-QAM) that use so-called polarization multiplexing on the most widely used single-mode fiber. Here, QAM transmission with polarization multiplexing requires a coherent receiver and is mostly used for longer transmission distances, while PAM transmission can be received with simple direct detection. The applied for arbitrary waveform generator (AWG) will be used flexibly in applications ranging from intra-data center transmission to long-haul communications, and will extend the existing system laboratory equipment to very high symbol rates and the generation of multiple channels in wavelength division multiplexing (WDM). One focus of the research work will be the investigation of signal processing (e.g. digital or also optical, neuromorphic signal processing). The arbitrary generator shall be flexibly capable of generating signals with ultra-high sampling rates of up to 256 GSa/s , but shall also have four outputs to generate polarization multiplex IQ signals or different signals for up to four independent WDM-channels.
DFG Programme
Major Research Instrumentation
Major Instrumentation
Arbiträrgenerator für optische Übertragungssysteme
Instrumentation Group
6340 Funktionsgeneratoren
Applicant Institution
Christian-Albrechts-Universität zu Kiel
