2-\mu m fluorescence and Raman spectra in high and low Al(PO

Thermal stability and 2-\mu m fluorescence of high and low Al(PO₃)₃ content of fluorophosphate glasses are investigated. Thermal stability of high Al(PO₃)₃ content of fluorophosphate glass is better than low Al(PO₃)₃ content of fluorophosphate glass. However, 2.04-\mu m fluorescence intensity of high Al(PO₃)₃ content of fluorophosphate glass is only 48.2, lower than low Al(PO₃)₃ content