Perturbation-based Compensation with EEPN-free Phase Recovery as Back Propagation
Optics
2026-05-11 v1 Signal Processing
Abstract
We propose a feed-forward perturbation-based method that uses the noisy received signal to compensate for nonlinear distortion, which outperforms the conventional decision-based method and avoids decision feedback. Additionally, combining it with the EEPN-free carrier phase recovery shows additional gain due to a fully symmetrical propagation-backpropagation structure.
Cite
@article{arxiv.2605.07219,
title = {Perturbation-based Compensation with EEPN-free Phase Recovery as Back Propagation},
author = {Chuang Xu and Alan Pak Tao Lau},
journal= {arXiv preprint arXiv:2605.07219},
year = {2026}
}