Joint Subcarrier Phase Recovery for Nonlinearity Mitigation

We propose a low-complexity phase recovery scheme that simultaneously mitigates laser phase noise and fiber nonlinearity across several subcarriers. In a long single-span link with Raman amplification, the scheme achieves 0.9 dB gain with 99 real multiplications per complex symbol.

Source: arXiv:2602.24158v1 - http://arxiv.org/abs/2602.24158v1 PDF: https://arxiv.org/pdf/2602.24158v1 Original Link: http://arxiv.org/abs/2602.24158v1