32 Gbaud real-time FPGA-based multi-format transmitter for generation of higher-order modulation formats

Abstract

For the first time, we report on a real-time FPGA-based multi-format transmitter including real-time coding, bit mapping and electronic pre-distortion for up to 32 Gbaud that corresponds in the case of polarization division multiplexed 16QAM to a data rate of 256 Gbit/s per wavelength.