1 Km hole-assisted few-mode multi-core fiber 32QAM WDM transmission

24.3GBaud 32QAM WDM transmission over a novel 1km hole-assisted few-mode multi-core fiber is demonstrated, resulting in 5.1Tbit/s spatial supercarriers (4Tbit/s net) with a gross spectral efficiency of 102bits/s/Hz, and a gross aggregate transmission rate of 255 Tbit/s (200 Tbit/s net).