Visible-infrared luminescence of Er3+-doped fluorotellurite glasses

Recently, rare earth ion-doped glass substrates with excellent optical and thermal properties have been widely researched as candidates for applications in fiber optical lasers with excellent performance. In this paper, two systems of fluorotellurite glass based on oxide and fluoride multicomponent glasses have been successfully prepared together with abundant dates about their glass forming capacity and spectral properties. It is obvious that fluorotellurite glasses possess better crystallization resistance than pure oxide and fluoride glasses. It is worth noting that relatively good luminous properties have been obtained together with ideal emission cross sections of 3.49 × 10−21 (TZNF) and 6.27 × 10−21 cm2 (AYF-T) respectively. Hence, considering the physicochemical and thermal properties, fluorotellurite glasses are advantageous as laser materials in the MIR region. •Two systems of fluorotellurite glass based on oxide and fluoride multicomponent glasses have been successfully obtained.•Fluorotellurite glasses show better thermal properties with comprehensive consideration of Tg an ΔT.•Relatively good luminous properties have been obtained together with ideal emission cross sections.