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Experimental Comparison of PAM-8 Probabilistic Shaping with Different Gaussian Orders at 200 Gb/s Net Rate in IM/DD System with O-Band TOSA

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arxiv 2206.07142 v1 pith:YTV6QVYE submitted 2022-06-14 eess.SP

Md Sabbir-Bin Hossain , Georg Böcherer , Youxi Lin , Shuangxu Li , Stefano Calabrò , Andrei Nedelcu , Talha Rahman , Tom Wettlin
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Jinlong Wei Nebojša Stojanović Changsong Xie Maxim Kuschnerov Stephan Pachnicke
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classification eess.SP
keywords pam-8gaussiandifferentordersprobabilisticuniformback-to-backcap-shaped
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For 200Gb/s net rates, cap probabilistic shaped PAM-8 with different Gaussian orders are experimentally compared against uniform PAM-8. In back-to-back and 5km measurements, cap-shaped 85-GBd PAM-8 with Gaussian order of 5 outperforms 71-GBd uniform PAM-8 by up to 2.90dB and 3.80dB in receiver sensitivity, respectively.

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