Scientists report a record SDM transmission experiment using multi-core fiber amplifier. Fully decoded optical data transmission of 715 Tb/s was achieved over a distance of 2,009 km in 19-core cladding pumped erbium doped fiber amplifier (EDFA) amplified MCF link using coded polarization division multiplexed (PDM) –16 quadrature-amplitude modulation (QAM) of 345 carriers over the C and L band in a re-circulating transmission loop.