Fig. 4: Data modulation testing.
From: High-speed electro-optic modulation in topological interface states of a one-dimensional lattice
a Measurement setup for data transmission testing. Eye diagrams for the NRZ signals at data rates of b 80 Gb/s and c 70 Gb/s, the PAM-4 signals at data rates of d 100 Gb/s and e 80 Gb/s, the PAM-6 signal at a data rate of f 77 Gb/s, and the PAM-8 signal at a data rate of g 90 Gb/s. h The BER versus ROP curves for different NRZ signals. Insets illustrate the calculated eye diagrams after DSP for the recovered 80, 90, and 100 Gb/s NRZ signals. i Measured footprint-bandwidth performance comparison of various reported thin film LN modulators. The circle symbols correspond to the results of MZI modulators, and the rectangle symbols correspond to those of cavity-based modulators. OSC oscilloscope
