High-speed All-optical Generation of Advanced Modulation Formats using Photonic-integrated All-optical Format Converter

we propose and demonstrate all-optical method for generating advanced modulation formats with high spectral efficiency. The proposed method is based on all-optical format conversion using photonic-integrated semiconductor optical amplifier (SOA) - Mach-Zehnder interferometers (MZIs). It enables application of advanced modulation formats at data rates not directly accessible using electronic means only. We demonstrate generation of single-polarization 86.4-Gb/s binary phase shift keying (BPSK) and 173-Gb/s quadrature phase shift keying (QPSK) optical signals.