Intensity-modulated / direct-detection (IM/DD) Nyquist pulse-amplitude modulation (PAM) signaling for 100-Gbit/s/λ optical short-reach transmission

Abstract

We propose a new high-speed optical IM/DD transmission scheme employing Nyquist-shaped PAM4 and PAM6 signaling with digital signal processing for short-reach applications and experimentally demonstrate its 100-Gbit/s operation over 2-km singe mode fiber at 1.5 μm band.