Effects of alkaline-earth fluorides and OH− on spectroscopic properties of Yb3+ doped TeO2-ZnO-B2O3 based glasses

► Structure of boro-tellurite glasses was studied by Raman spectra. ► Different alkaline-earth fluorides were introduced into tellurite glasses. ► Dehydration ability of fluorides was evaluated with FTIR spectra. ► The relationship between Yb3+ lifetime and OH-concentration was studied.