A Low-Loss Split-Carrier Transmitter Architecture for Intra-Datacentre Communications

A split-carrier transmitter is proposed to increase the loss budget for intra-datacentre links by reducing modulator insertion loss. Transmission of 28 GBd subcarrier modulated 16-QAM (112 Gb/s) over 2 km SSMF is shown to be possible with an optimised modulator loss of <4.4 dB