
New optical modulator can operate at 10 times the speed of current devices
Between the two probes you can find the PLZT optical modulator developed by the research team. The modulator is 2.5 mm in length. The waveform demonstrates the results from the two tests conducted on the optical modulator: on-off-keying method (top) and four-level pulse-amplitude-modulation method (bottom). The four-level pulse-amplitude-modulation method can double the transmission rate by…