$6 times 2.3 text{Tb} / mathrm{s}$ Net Rate Transmission Over 20.2 Km of Ultra-Low Loss Hollow Core Fiber Using DP-16QAM Signalling and High Power Doped Fiber Amplifier. - Haïk Mardoyan; Amirhossein Ghazisaeidi; Carina Castineiras Carrero; Rajiv Boddeda; Fabien Boitier; Peng Li; Lei Zhang 006; Jie Luo; Chengpeng Fu; Chifeng Hu; Jelena Pesic; Jérémie Renaudier (ECOC, 2025)