54 Tb/s Transmission over 9,150 km with Optimized Hybrid Raman-EDFA Amplification and Coded Modulation

Using optimized hybrid Raman-EDFAs and coded modulation with variable spectral efficiency we achieve 54 Tb/s capacity over 9,150 km transmission. We also achieve a capacity-distance product of 534 Pb/s(star)km after 10,230 km distance.