SiPh Self-Coherent Transmitter Circuit with on-Chip CSPR Control Capability Based on a Tunable Power Splitter

We present a novel CSPR controllable silicon photonic transmitter circuit based on a tunable power splitter for VSB self-coherent transmissions. 112 Gb/s 16 QAM over 80 km at a BER below 3.8×10 −3 has been achieved.