Silicon Mach-Zehnder Modulator for 120 Gbps PAM-4 and 200 Gbps 16-QAM Signal Generation

Using silicon Mach-Zehnder modulator, we demonstrate single-polarization 120 Gbps PAM-4 and 200 Gbps 16-QAM signal generation with the bit error ratio (BER) below 7% overhead hard-decision forward error correction (HD-FEC) threshold of 3.8e-3.