Abstract

Phase estimation of signals below noise is a main challenge in optical quantum communication receivers. Heterodyne detection at a SNR of less than -20 dB with machine learning based optimized carrier phase estimation is demonstrated.

© 2020 The Author(s)

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More Like This
17 GBd Sub-Photon Level Heterodyne Detection for CV-QKD Enabled by Machine Learning

Max Rückmann, Sebastian Kleis, and Christian G. Schaeffer
Th2A.54 Optical Fiber Communication Conference (OFC) 2020

Advancing classical and quantum communication systems with machine learning

D. Zibar, U. C. Moura, H. M. Chin, A. M. Rosa Brusin, N. Jain, F. Da Ros, S. Kleis, C. Schaeffer, T. Gehring, U. L. Andersen, and A. Carena
W1K.1 Optical Fiber Communication Conference (OFC) 2020

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Christian G. Schaeffer, Sebastian Kleis, Max Rückmann, and Darko Zibar
T4H.1 Asia Communications and Photonics Conference (ACPC) 2019