S. Zhalehpour, Jiachuan Lin, H. Sepehrian, W. Shi, L. Rusch
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Experimental Demonstration of Reduced-Size LUT Predistortion for 256QAM SiP Transmitter
We experimentally demonstrate a predistortion method combining a linear equalizer and nonlinear reduced-size lookup table (LUT) for a silicon based IQ modulator at 20 Gbaud 256QAM. We achieve BER well below the 20% FEC-threshold.
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