Schedule 0 3:50 PM - 5:00 PM [ALPS-P2-02] Measurement of small signal gain in Pr-doped waterproof fluoride glass fiber *Takumi Ikeda1, Sokuto Itou1, Yuki Fukuda1, Shota Kajikawa2, Minoru Yoshida2, Yasushi Fujimoto1 (1. Chiba Institute of Technology, 2. KINDAI University)