Single carrier 1.2 Tbit/s transmission over 300 km with PM-64 QAM at 100 GBaud

We experimentally demonstrate Dual Polarization 64 QAM at 100 GBaud performing below the 20% soft FEC threshold of 4×10⁻² over 300 km of ultra large effective area fiber at a record line rate of 1.2-Tbit/s.