319 Tb/s Transmission over 3001 km with S, C and L band signals over >120nm bandwidth in 125 μm wide 4-core fiber

We demonstrate recirculating transmission of 552 x 25 GHz spaced channels covering >120 nm of S, C and L-bands in a 125μm dimeter, 4-core fiber, measuring a decoded throughput of 319 Tb/s at 3001 km.