Demonstration and Characterization of High-Throughput 200.5 Tbit/s S+C+L Transmission over 2x100 PSCF Spans
Salma Escobar-Landero, Xiaohui Zhao, Dylan Le Gac, Abel Lorences-Riesgo, Tugdual Viret-Denaix, Qiang Guo, Lin Gan, Shujie Li, Shiyi Cao, Xinhua Xiao, Iosif Demirtzioglou, Nayla El Dahdah, Antonin Gallet, Shuqi Yu, Hartmut Hafermann, Loïg Godard, Romain Brenot, Yann Frignac, Gabriel Charlet
Abstract
Recent advances in multi-band amplification support ultra-wideband (UWB) systems as a suitable solution to cope with the increasing fiber communications traffic demand. The combination of UWB with spectral-efficient modulation formats can significantly increase in the total throughput of wavelength division multiplexed (WDM) transmission systems. In this work, we demonstrate a 240×70 Gbaud PCS-256QAM WDM transmission using an optical bandwidth of 150 nm across the S, C and L bands. We combine doped-fiber amplifiers, semiconductor optical amplifiers (SOA) and backward distributed Raman amplification to achieve 200.5 Tbit/s of total generalized mutual information (GMI) throughput over two 100 km pure-silica-core fibers (PSCFs). We also present the digital twin of this experiment, providing the impact of wavelength-dependent impairments on the system performance. Our results demonstrate the feasibility of high-throughput multi-span UWB transmission.