The Reduction of 1.06-µm Emission in a Double Cladding Tellurite All-solid Photonic Bandgap Fiber Doped with Neodymium Ions. - Tong Hoang Tuan; Kohei Suzaki; Nobuhiko Nishiharaguchi; Takenobu Suzuki; Yasutake Ohishi (ICETE (1), 2019)