We demonstrate a silicon photonic dual-polarization phase retrieval receiver. The receiver recovers phase from intensity-only measurements without a local oscillator or transmitted carrier. We design silicon waveguides providing long delays and microring resonators with large dispersion to enable symbol-to-symbol interference and dispersive projection in the phase retrieval algorithm. We retrieve the full field of a polarization-division multiplexed 30-GBd QPSK and 20-GBd 8QAM signals over 80 km of SSMF.
@article{arxiv.2310.02467,
title = {Dual-Polarization Phase Retrieval Receiver in Silicon Photonics},
author = {Brian Stern and Hanzi Huang and Haoshuo Chen and Kwangwoong Kim and Mohamad Hossein Idjadi},
journal= {arXiv preprint arXiv:2310.02467},
year = {2023}
}