Signal Design and Machine Learning Assisted Nonlinearity Compensation for Coherent Optical Fibre Communication Links - PhDData

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Signal Design and Machine Learning Assisted Nonlinearity Compensation for Coherent Optical Fibre Communication Links

The thesis was published by Dzieciol, Hubert, in February 2023, UCL (University College London).

Abstract:

This thesis investigates low-complexity digital signal processing (DSP) for signal design and nonlinearity compensation strategies to improve the performance of single-mode optical fibre links over different distance scales.

The performance of a novel ML-assisted inverse regular perturbation technique that mitigates fibre nonlinearities was investigated numerically with a dual-polarization 64 quadrature amplitude modulation (QAM) link over 800 km distance. The model outperformed the heuristically-optimised digital backpropagation approach with



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