Transmission of 256Gb/s PM-16QAM signal through hybrid cladding and core pumping scheme MC-EDFA controlled for reduced power consumption

We transmit 256Gb/s signal through 404km, passing 8 times a hybrid pumping scheme MC-EDFA controlled depending on monitored temperature. Received Q value variations are within ±0.15dB while power consumption is reduced by up to 38.0%.