Joint Subcarrier Phase Recovery for Nonlinearity Mitigation
arXiv:2602.24158
Abstract
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.
Submitted to OFC 2026