Demonstration of Real-Time 400G Single-Carrier Ultra-Efficient 1.2Tb/s Superchannel over Large Aeff Ultra-Low Loss Terrestrial Fiber of 150km Single Span and 250km (2×125km Spans) Using only EDFA Amplification. - Yu Rong Zhou; Kevin Smith; Mike Gilson; Jingxin Chen; Weiwei Pan; Youhui Chang; Shuangyuan Wu; Shipeng Wu; Ian Davis (OFC, 2018)