200 GBd 16QAM Signals Synthesized by an Actively Phase-Stabilized Optical Arbitrary Waveform Generator (OAWG)

Abstract

We implement an optical arbitrary-waveform generator (OAWG) that relies on spectrally sliced signal synthesis with well-defined feedback-stabilized phase relations. We demonstrate the viability of the approach by generating high-quality 16QAM signals with record-high symbol rates of up to 200 GBd.