Two pure fluoride and three fluoride phosphate glasses with known properties and global structure have been doped with Er3+ (4f11). A typical fluorizirconate (ZBLAN) and a typical fluoroaluminate glass (FP00) were compared. The effect of P2O5 addition in fluoroaluminate glasses was investigated with varying phosphate content between 0 and 20 mol% (FPx). Important physical properties were determined to characterize the glass samples. The static and dynamic luminescence behaviour of the green and red emission have been studied by ultraviolet and visible excitation. The pure fluoroaluminate and fluorozirconate glass samples provide very high green luminescence emission intensity and long lifetime, due to surrounding fluorine ligands. It is know that adding phosphate to the fluoroaluninate glass increases the glass-forming ability, but it decreases the luminescence intensity and lifetime drastically due to more oxygen ligands and higher electron-phonon coupling.
