85-Gbaud PAM-8 transmission with BER below HD-FEC limit under 20-GHz bandwidth limitation is achieved applying NL-MLSE based on Volterra filter. NL-MLSE also achieves 3.84-Tbps O-band transmission using 4-λ LAN-WDM and SDM over 2-km 4-core fiber.

© 2019 The Author(s)

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