8 Tbit/s (80x107 Gbit/s) DWDM ASK-NRZ VSB transmission over 510 km NZDSF with 1bit/s/Hz spectral efficiency

We demonstrate error free 80x107Gbit/s DWDM ASK-NRZ VSB transmission over 510km NZDSF with spectral efficiency of 1bit/s/Hz. Q-factor margin of 2.5dB over C/L-band and 70% increased dispersion tolerance compared to conventional NRZ is achieved.