A Low-Voltage 35-GHz Silicon Photonic Modulator-Enabled 112-Gb/s Transmission System


We have a tendency to present a silicon photonic traveling-wave Mach–Zehnder modulator operating near 1550 nm with a 3-dB bandwidth of thirty five GHz. A detailed analysis of traveling-wave electrode impedance, microwave loss, and phase velocity is presented. Small- and giant-signal characterization of the device validates the planning methodology. We tend to any investigate the performance of the device during a short-reach transmission system. We report a successful 112-Gb/s transmission of four-level pulse amplitude modulation over five km of SMF using two.two drive voltage. Digital signal processing is applied at the transmitter and receiver. fifty six-GBaud PAM-4 and 64-Gb/s PAM-a pair of transmission is demonstrated below a pre-FEC hard call threshold of .

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