Effective Area Enlarged Photonic Crystal Fiber with Quasi-Uniform Air-Hole Structure for High Power Transmission. - Takashi Matsui; Kyozo Tsujikawa; Takehisa Okuda; Nobutomo Hanzawa; Yuto Sagae; Kazuhide Nakajima; Yasuyuki Fujiya; Kazuyuki Shiraki (IEICE Trans. Commun., 2020)