2.4 Tbit/s WDM transmission over 7400 km using all Raman amplifier repeaters with 74 nm continuous single band

We have demonstrated 240 channel, 10 Gbit/s WDM transmission over 7404 km using all Raman amplifier repeaters with a continuous signal bandwidth of 74 nm and dispersion-managed fiber with our proposed dispersion map for transmission systems based on distributed Raman amplifiers (DRA).