Compressed Nonlinear Equalizers for 112-Gbps Optical Interconnects: Efficiency and Stability
Abstract
:1. Introduction
2. Principle of Pruned Nonlinear Equalizers
2.1. Volterra Series and Neural Network-Based Equalizer
2.2. Pruning Algorithm
3. Experiment and Results
3.1. Experiment Setup
3.2. Efficiency Comparison
3.3. Stability Comparison
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
Abbreviations
VE | Volterra series-based equalization |
NNE | Neural network-based equalization |
VCSEL | Vertical cavity surface emitting laser |
BER | Bit error rate |
IM-DD | Intensity modulation and direct detection |
PAM | Pulse amplitude modulation |
CAP | Carrier-less amplitude phase modulation |
DMT | Discrete multi-tone modulation |
SNR | Signal–noise ratio |
RIN | Relative intensity noise |
MPN | Mode partition noise |
DSP | Digital signal processing |
PRBS | Pseudo-random binary sequence |
VOA | Variable optical attenuator |
PD | Photodetector |
TIA | Transimpedance amplifier |
DSO | Digital storage oscilloscope |
B2B | Back-to-back |
Tanh | Tangent hyperbolic |
ReLU | Rectified linear unit |
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Zhang, W.; Ge, L.; Zhang, Y.; Liang, C.; He, Z. Compressed Nonlinear Equalizers for 112-Gbps Optical Interconnects: Efficiency and Stability. Sensors 2020, 20, 4680. https://doi.org/10.3390/s20174680
Zhang W, Ge L, Zhang Y, Liang C, He Z. Compressed Nonlinear Equalizers for 112-Gbps Optical Interconnects: Efficiency and Stability. Sensors. 2020; 20(17):4680. https://doi.org/10.3390/s20174680
Chicago/Turabian StyleZhang, Wenjia, Ling Ge, Yanci Zhang, Chenyu Liang, and Zuyuan He. 2020. "Compressed Nonlinear Equalizers for 112-Gbps Optical Interconnects: Efficiency and Stability" Sensors 20, no. 17: 4680. https://doi.org/10.3390/s20174680