May 18, 2022
Abstract:For 200Gbit/s net rates, uniform PAM-4, 6 and 8 are experimentally compared against probabilistic shaped PAM-8 cap and cup variants. In back-to-back and 20km measurements, cap shaped 80GBd PAM-8 outperforms 72GBd PAM-8 and 83GBd PAM-6 by up to 3.50dB and 0.8dB in receiver sensitivity, respectively
* 2021 European Conference on Optical Communication (ECOC)
* Originally published in ECOC-2021. We have updated Figure 3. The
change also affects the overall outcome. In contrast to the published
version, compared to uniform PAM-8 72 GBd, PS-PAM-8 80 GBd performance is
updated to 3.50 dB instead of 5.17 dB, while for PAM-6 83 GBd the gain
becomes 0.8 dB instead of 2.17 dB. The changes are adapted in all sections
except the experimental setup and DSP section
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