Fig. 4: High-speed transmission.
From: Ultra-fast perovskite electro-optic modulator and multi-band transmission up to 300 Gbit s−1
a The experimental setup used to obtain OOK and PAM4 signals from the PLZT modulator. This setup comprised an arbitrary waveform generator (AWG), an amplifier (amp), a DC voltage supplier, a polarization controller (PC), a fiber amplifier (FA), a bandpass filter (BP), and a photodetector (PD). b, c Eye diagrams obtained from OOK signals at 172 Gbit s−1 without FFE and with FFE (TAP = 4) for 1550 nm. d, e Eye diagrams obtained from OOK signals at 172 Gbit s−1 without FFE and with FFE (TAP = 4) for 1310 nm. f, g Eye diagrams obtained from PAM4 signals at 304 Gbit s−1 for 1510 and 1310 nm. h BER values at different OOK signals and wavelengths for line rates of 128–172 Gbit s−1. i BER values at different PAM4 signals and wavelengths for line rates of 232 to 304 Gbit s−1.
