Demonstration of 50 Gbit/s 16QAM signal generation by novel 16QAM generation method using a dual-drive InP Mach-Zehnder modulator

We propose a novel 16QAM signal generation method using a single Mach-Zehnder modulator. We successfully demonstrate 50 Gbit/s 16QAM signal generation with a dual-drive npin InP Mach-Zehnder modulator using amplitude control by electro-absorption.