BROADENING OF RARE EARTH ION EMISSION BANDWIDTH IN PHOSPHATE-BASED LASER GLASS

摘要

PROBLEM TO BE SOLVED: To disclose the use of phosphate-based glasses as a solid state laser gain medium.;SOLUTION: The phosphate-based laser glass includes a composition, in mol%, of 35-65 P₂O₅; 0-20 SiO₂; 0-15 B₂O₃; 0-10 Al₂O₃; 0-10 Nb₂O₅; 0-5 TeO₂; 0-5 GeO₂; 0-5 WO₃; 0-5 Bi₂O₃; 0-5 La₂O₃; 0-10 Ln₂O₃ (wherein Ln is laser oscillation ions of Groups 58 to 71 in the periodic table); 10-30 R₂O (wherein R is Li, Na, K, Rb, Cs); 10-30 MO (wherein M is Mg, Ca, Sr, Ba, Zn); and 0-5 Sb₂O₃. Each of SiO₂, B₂O₃, TeO₂, Nb₂O₅, Bi₂O₃, WO₃, and/or GeO₂ is present in a range of 0 but about 15 mol%, and the sum of the amounts thereof is at least 1 mol%.;COPYRIGHT: (C)2012,JPO&INPIT