Zhipeng Dong
Xiamen University
Xinju Yang
Xian Yang Central Hospital
Chun Gu
University of Science and Technology of China
Zuimin Jiang
Fudan University
Chih‐Hung Chang
Oregon State University
Lixin Xu
University of Science and Technology of China
Peijun Yao
University of Science and Technology of China
Xiao Hu
Shanxi Medical University
Fei Xu
Shanghai University
Guohuan Lou
North China University of Science and Technology
Chinese Academy of Sciences
Fudan University
University of Science and Technology of China
Shanghai Jiao Tong University
Sun Yat-sen University
State Key Laboratory of Surface Physics
Oregon State University
Huazhong University of Science and Technology
Tongji University
Southeast University
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.