Spectroscopic properties of heavy metal oxide glasses (Bi2O3-PbO-Ga2O3) doped with Er3+ are presented. The literature published the use of Pr3+, Dy3+ and Tm3+ in this host [1,2]. We reported, last year [3, 4], the use of Nd3+ and Yb3+. In the case of Er3+ the literature presented the study of the 2700nm emission and this work deals with the 1532nm one [5]. The glasses have high refractive index (of 2.52), transmission cutoff in the far infrared (at 9μm) knoop hardness of 321kg/mm² and density of 7.0g/cm³. Measurements of absorption, emission and fluorescence lifetime are shown. Measured lifetimes showed a maximum value of 3.94ms for the glass with 0.5wt% of Er2O3. The lifetime increase at low Er2O3 concentration was attributed to radiation trapping [6] whereas the subsequent decrease to concentration quenching.