First 100 km uplink transmission at 2.5 Gbit/s for hybrid WDM/TDM PON based on optimized bi-electrode RSOA

We demonstrate that the use of an optimized (high gain) bi-electrode reflective semiconductor optical amplifier as remote modulator enables 100 km transmission on single mode fiber below the FEC limit at 2.5 Gbit/s for colourless operation.