Transmitter Impairment Mitigation by 8×2 Widely Linear MIMO Equalizer with Improved Frequency Offset Tolerance.

Xuemeng Hu,Zepeng Gong, PengPeng Wei, Fan Shi, Xiao Xiao,Tianye Huang,Xiang Li

Optical Fiber Communications Conference and Exhibition（2024）

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摘要

Transmitter impairment mitigation for 45GBaud DP-64QAM with 8×2 WL MIMO equalizer embedding CW-DA-WL phase estimator is demonstrated. Q penalty less than 0.5-dB with 8-ps IQ skew and 2.5-dB power imbalance are achieved with improved tolerance to frequency offset.

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关键词

Multiple-input Multiple-output,Linear Equalizer,Multiple-input Multiple-output Equalizer,Widely Linear,Power Imbalance,Phase Estimation,Invertible,Digital Signal Processing,Phase-locked Loop,Digital Oscilloscope,Filter Length,Carrier Phase,Modulation Formats,Symbol Rate,Standard Single-mode Fiber,Fiber Transmission,Channel Equalization,Coherent Receiver

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