The impact of Era ions on the spectroscopic scrutiny of Bismuth bariumtelluroborate glasses for display devices and 1.53 μm amplification

Er3+ incorporated Bismuth bariumtelluroborate [BTBxEr] glasses were synthesized using the composition, 20TeO(2) + (30-x)B2O3 + 30BaO + 20Bi(2)O(3) + xEr(2)O(3), following the traditional melt quenching method. The bonding parameters were calculated using absorption spectra to analyze the dopant-host bonding nature. Omega(lambda) (lambda = 2,4,6) intensity parameters are determined from the oscillator strengths employing Judd-Ofelt (JO) theory for the estimation of the radiative parameters. Broad emission transition I-4(13/2) -> I-4(15/2) were observed around 1530 nm, under 980 nm excitation which exhibits outstanding increased intensity with the Er3+ concentration of till it reaches 0.5 wt%. CIE chromaticity coordinates, CCT and Duv have determined to analyze the color of emission and the absorption quality of the glasses. Lifetime for the I-4(13/2) excited (at 980 nm excitation) and S-4(3/2) (at 488 nm excitation) levels of Er3+ ions were measured using decay measurements. Of all investigations, BTBEr glasses could be an apt material for the fabrication optical amplifiers, display devices and green laser applications.