Fig. 4: Eye diagrams of a single microring modulator (MRM).
From: A 5 × 200 Gbps microring modulator silicon chip empowered by two-segment Z-shape junctions
a Micrograph of a two-segment Si MRM. Measured eye diagrams of 100 Gb/s non-return-to-zero (NRZ) of the least significant bit (LSB), most significant bit (MSB), both LSB and MSB (b–d); and 200 Gb/s pulse amplitude modulation with four levels (PAM4) of both LSB and MSB (e).
