Single-sideband (SSB) signaling is a promising technology for short and medium reach optical transmission. We propose a novel architecture of linear network-assisted long short-term memory network (LN-LSTM) to mitigate optical transmission impairments in SSB systems. With a combination of a linear network and an input-pruned LSTM network, LN-LSTM achieves better performance and lower computation complexity compared with conventional LSTM equalization. With LN-LSTM, we achieve 6.4 Tb/s ( 32×20032\times 200 Gb/s) wavelength division multiplexing (WDM) SSB transmission over 320km standard single-mode fiber (SSMF) with a bit error rate (BER) below the 20% soft-decision forward error-correction (SD-FEC) threshold of 2.4×10−22.4\times 10^{-2} .

中文翻译：

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6.4Tb/s SSB WDM 传输超过 320 公里 SSMF，具有线性网络辅助 LSTM


单边带（SSB）信令是一种有前途的中短距离光传输技术。我们提出了一种线性网络辅助长短期记忆网络（LN-LSTM）的新颖架构，以减轻 SSB 系统中的光传输损伤。通过将线性网络和输入剪枝的 LSTM 网络相结合，LN-LSTM 与传统的 LSTM 均衡相比具有更好的性能和更低的计算复杂度。利用 LN-LSTM，我们在 320 公里标准单模光纤 (SSMF) 上实现了 6.4 Tb/s (32×20032\times 200 Gb/s) 波分复用 (WDM) SSB 传输，误码率 (BER) 低于20% 软决策前向纠错 (SD-FEC) 阈值为 2.4×10−22.4\times 10^{-2} 。