Experimental Demonstration of 4-Port Photonic Reservoir Computing for Equalization of 4 and 16 QAM Signals

Sarah Masaad; Stijn Sackesyn; Stylianos Sygletos; Peter Bienstman

doi:10.1109/jlt.2024.3444480

Experimental Demonstration of 4-Port Photonic Reservoir Computing for Equalization of 4 and 16 QAM Signals

Sarah Masaad
, Stijn Sackesyn
, Stylianos Sygletos
, Peter Bienstman

College of Engineering and Physical Sciences

Research output: Contribution to journal › Article › peer-review

14 Citations (SciVal)

49 Downloads (Pure)

Abstract

We experimentally demonstrate the application of a passive 16-node photonic reservoir for analogue, hardware-based equalization of coherently modulated signals at 28 Gbaud. This integrated photonic network, termed the 4-port reservoir, replaces computationally expensive digital signal processing (DSP) procedures for both fiber impairment equalization, including chromatic dispersion, as well as for transceiver imbalance equalization. For full mitigation of transmission impairments, our photonic solution can seamlessly integrate with DSP blocks for frequency offset compensation and blind phase search, achieving bit error rates on-par with the legacy DSP blocks it replaces. The same reservoir is shown to successfully equalize both 4 and 16 QAM signals in a range of linear and nonlinear transmissions.

Original language	English
Pages (from-to)	8555-8563
Number of pages	9
Journal	Journal of Lightwave Technology
Volume	42
Issue number	24
Early online date	15 Aug 2024
DOIs	https://doi.org/10.1109/jlt.2024.3444480
Publication status	Published - 15 Dec 2024

Bibliographical note

Copyright © 2024 The Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0

Funding

This work was supported in part by European Project Postdigital under Grant GA860360, in part by Nebula under Grant GA871658, in part by Neoteric under Grant GA871330, in part by Prometheus under Grant GA101070195, in part by Belgian FWO under Grant G006020N, and in part by EOS under Grant 40007536.

Funders	Funder number
Fonds Wetenschappelijk Onderzoek	G006020N
European Orthodontic Society	40007536
Prometheus	GA101070195

Keywords

16 QAM
4 QAM
Analogue Computing
Coherent Receiver
Dispersion Compensation
Optical fiber amplifiers
Optical receivers
Optical signal processing
Photonic Computing
Photonic Reservoir
Photonics
Quadrature amplitude modulation
Reservoirs
Signal Equalization
Transceivers

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10.1109/jlt.2024.3444480Licence: CC BY-NC-ND 4.0

Experimental_Demonstration_of_4-Port_Photonic_Reservoir_Computing_for_Equalization_of_4_and_16_QAM_Signals
Copyright © 2024 The Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0
Accepted author manuscript, 748 KBLicence: CC BY-NC-ND 4.0
S Masaad et al_Experimental_Demonstration_of_4-Port_Photonic_Reservoir_Computing_for_Equalization_of_4_and_16_QAM_Signals
Copyright © 2024 The Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0
Final published version, 2.91 MBLicence: CC BY-NC-ND 4.0

Cite this

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title = "Experimental Demonstration of 4-Port Photonic Reservoir Computing for Equalization of 4 and 16 QAM Signals",

abstract = "We experimentally demonstrate the application of a passive 16-node photonic reservoir for analogue, hardware-based equalization of coherently modulated signals at 28 Gbaud. This integrated photonic network, termed the 4-port reservoir, replaces computationally expensive digital signal processing (DSP) procedures for both fiber impairment equalization, including chromatic dispersion, as well as for transceiver imbalance equalization. For full mitigation of transmission impairments, our photonic solution can seamlessly integrate with DSP blocks for frequency offset compensation and blind phase search, achieving bit error rates on-par with the legacy DSP blocks it replaces. The same reservoir is shown to successfully equalize both 4 and 16 QAM signals in a range of linear and nonlinear transmissions. ",

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Experimental Demonstration of 4-Port Photonic Reservoir Computing for Equalization of 4 and 16 QAM Signals

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