Conclusion
We have demonstrated a data-driven TDECQ assessment scheme based on L-SNN. In comparison with existing DL-based schemes, the proposed L-SNN can achieve the lowest computation complexity with only 210 multiplications. The MAE of the L-SNN scheme for 25 and 50 Gbaud PAM-4 optical signals is experimentally verified to be 0.13 and 0.15 dB, respectively, over the TDECQ range of 1.5–4.0 dB, which has reached the accuracy threshold of 0.25 dB recommended by the IEEE standard.
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Acknowledgements
This work was supported by National Natural Science Foundation of China (Grant No. 62025502) and Guangdong Introducing Innovative and Entrepreneurial Teams of the Pearl River Talent Recruitment Program (Grant No. 2021ZT09X044).
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Supporting information Appendixes A and B. The supporting information is available online at info.scichina.com and link.springer.com. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.
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Xiang, J., Chen, Z., Cheng, Y. et al. Linear shallow neural network to accelerate transmitter dispersion eye closure quaternary (TDECQ) assessment. Sci. China Inf. Sci. 67, 149301 (2024). https://doi.org/10.1007/s11432-023-3947-8
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DOI: https://doi.org/10.1007/s11432-023-3947-8