80-Gb/s conventional hybrid TDM/WDM PON with 256-split based on remotely-pumped network-embedded self-tuning transmitter

We present a conventional hybrid stacked-WDM/TDM-PON system based on a colorless network-embedded self-tuning transmitter assisted by a remotely pumped erbium-doped double-pass amplifier located at the remote node. The scheme provides up to 256-split PON with 80-Gb/s aggregate upstream capacity obtained with RSOA direct modulation at 2.5Gb/s.