Probabilistic and Geometric Shaping for Next-Generation 100G Flexible PON

2020 
We investigate probabilistic shaping (PS) and geometric shaping (GS) for next-generation flexible passive optical network (PON) systems. Our proposed scheme introduces flexible data rate tuning with up to 1.1-dB sensitivity improvement, while GS can effectively mitigate the penalty brought by combination with forward error correction (FEC).
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