We report recurrent optical spectrum slicers as multi-wavelength optical processors in dispersion impaired IM/DD transmission systems with the use of programmable photonics. We demonstrate simultaneous equalization of three 64 Gb/s PAM-4 wavelengths after 75 km in the C-band and high tolerance to wavelength grid.
@article{arxiv.2507.11659,
title = {Recurrent Optical Spectrum Slicers as multi-{\lambda} processors for WDM optical equalization of IM/DD channels},
author = {Kostas Sozos and Francesco Da Ros and George Sarantoglou and Charis Mesaritakis and Adonis Bogris},
journal= {arXiv preprint arXiv:2507.11659},
year = {2025}
}