Hybrid-coherent reservoir computing for 200 km PAM-4 transmission links

Lucas Talandier; Ingo Fischer; Apostolos Argyris

doi:10.1117/12.2647823

8 March 2023 Hybrid-coherent reservoir computing for 200 km PAM-4 transmission links

Lucas Talandier, Ingo Fischer, Apostolos Argyris

Proceedings Volume 12427, Optical Interconnects XXIII; 1242703 (2023) https://doi.org/10.1117/12.2647823
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

In this work, we consider a hybrid-coherent time-delay photonic reservoir, with a coherent input layer and an incoherent output layer, for post-processing signals from a 200 km, 28 GBaud PAM-4 transmission link. The amplitude and the phase of the transmission link are obtained through a coherent receiver and introduced as two independent encoding signals at the input of our photonic reservoir. We use the photodetected intensity of the reservoir’s response to train a linear classifier and perform the data recovery task. This hybrid-coherent reservoir exhibits a bit error rate of 10−4 , three orders of magnitude lower compared to the performance of the same photonic reservoir that processes only the amplitude information at the input.

Conference Presentation

Citation Download Citation

Lucas Talandier, Ingo Fischer, and Apostolos Argyris "Hybrid-coherent reservoir computing for 200 km PAM-4 transmission links", Proc. SPIE 12427, Optical Interconnects XXIII, 1242703 (8 March 2023); https://doi.org/10.1117/12.2647823

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