Abstract
A modified weighted learned digital backpropagation (M-W-LDBP) with pre-optimization is proposed for fiber nonlinearity compensation in high-symbol-rate coherent systems. Compared with LDBP, M-W-LDBP exhibits 1/0.7 dB signal-to-noise ratio gain in 90/128-GBaud systems, respectively.
© 2022 The Author(s)
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