800 Gbit/s (80/spl times/10.66 Gbit/s) transmission over 3200 km of non-zero dispersion shifted fibre with 100 km amplified spans employing distributed Raman amplification

80 × 10.66 Gbit/s wavelength division multiplexing transmission over 3200 km fibre with 100 km amplifier spacing and 50 GHz channel spacing is demonstrated. Error-free transmission of all 80 channels is achieved by employing distributed Raman amplification, forward error correction and low dispersion slope TrueWave® fibre.