Spectroscopic Properties of Er{sup 3+} Doped Phosphate Glass

A series of erbium doped phosphate glass has been successfully prepared using melt quenching technique. The glass density is decreased as the glass host content increases. The infrared absorption spectroscopy has been carried out to this series of glass. The samples exhibit five absorption bands in the range of 400-1400 cm{sup -1}. The peaks assigned to P=O{sub (s)}, PO{sub 2(s)}, P-O{sup -}, P-O-P{sub (s)} and PO{sub 4}{sup 3-}. Meanwhile, the luminescence spectroscopy shows the emission spectra of {sup 2}H{sub 9/2}, {sup 4}F{sub 3/2}, {sup 4}F{sub 7/2} and {sup 4}I{sub 9/2} at their transition level. The transition of {sup 4}F{sub 7/2} gives strong and weak emission peak.