10.6084/m9.figshare.5907046.v1 Piotr Ciacka Piotr Ciacka UHNA4.csv Optica Publishing Group 2018 group velocity dispersion 2018-05-15 18:11:24 Dataset https://opticapublishing.figshare.com/articles/dataset/UHNA4_csv/5907046 Dataset containing group velocity dispersion parameter D (ps/nm/km) for UHNA4 Ultra-High Numerical Aperture Fiber (Coherent-Nufern) in the range 1200-2400 nm.