We firstly propose and demonstrate the 50-Gb/s multilane EPON that can accommodate 25G-EPON ONUs and 50G-EPON ONUs in the legacy ODN. For this, we use two wavelength pairs within O-band which assigned 1309/1270-nm and 1295/1330-nm to each lane, respectively. We also design MAC control that operates the discovery process with multilane-controllable GATE/REPORT frame via lane 0. We confirm that 50-Gb/s multilane EPON satisfy a loss-free for 1010 packets at the throughput of 40-Gb/s at downstream and 16-Gb/s at upstream with the RS(255,223)-based FEC at the distance of 20 km and 1:32 splitter.
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