[WB3] Coherent DSP

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[WB3-3] All-Digital 16 QAM Nyquist Pulse Transmission over 4,000 km

○Masato Yoshida¹, Takeki Serikawa¹, Keisuke Kasai¹, Toshihiko Hirooka¹, Masataka Nakazawa¹ (1.Tohoku University)

Keywords:

Digital signal processing,advanced modulation,coding and multiplexing,Multiplexing and demultiplexing techniques including OTDM,OFDM,OCDM and SDM

We present the first demonstration of coherent Nyquist pulse TDM transmission in a fully digital scheme. 40-Gbaud, 16-QAM signals were transmitted over 4,000-km, which is 300-km longer than an NRZ transmission with a Nyquist filter.