DiNeq Tasks
Task T0: Project management and scientific dissemination
- ensure timely accomplishment of the project goals and proposed milestones.
- promote regular project coordination meetings (at least 4 per project year).
- continuous tracking of the evolving state-of-the-art.
- Dissemination of the project results:
- production of scientific publications in top international journal and conferences.
- yearly project workshops.
Task T1: Nonlinear equalizers for WDM transmission systems
- development of digital equalization algorithms for the mitigation of intra- and inter-channel nonlinearities in single-mode WDM transmission systems:
- extend the FD-VSNE technique for polarization-multiplexed transmission.
- develop and optimize inter-channel equalization techniques.
- develop low-complexity compensation strategies using incomplete information.
- optimize computational effort of digital nonlinear equalization:
- apply a pruning strategy to the VSNE algorithm.
- explore new approaches for nonlinear equalization:
- artificial neural networks.
- analysis and compensation of nonlinearities in MIMO optical transmission systems supported by few-mode fibers:
- assessment of the impact of nonlinearities in FMFs.
- develop numerical tools both for the analysis of optical field propagation in FMFs and SNR prediction under the nonlinear regime.
- extend the single-mode VSTF tool in order to predict and unveil the impact of nonlinear phenomena in FMFs under moderate optical powers.
- extend both the BP-SSF and FD-VSNE algorithms to account for inter-modal XPM.
- develop simple closed-form analytical expressions to:
- predict the SNR gain provided by different nonlinear equalization algorithms.
- quantify the computational requirements in terms of number of multiply-accumulate (MAC) operations and latency.
- Develop a tool to assist on the choice of the optimum equalization algorithm for a given SNR target and available computational resources.
- experimentally implement and validate the developed nonlinear equalization algorithms:
- offline equalization recurring to experimental testing data.
- real-time implementation of the equalization subsystem in FPGA.
Task T2: Nonlinear numerical tools for few-mode fibers
Task T3: Figures of merit for digital nonlinear equalizers
Task T4: Experimental implementation and validation