Abstract
In this study, 24ZnF2-(47-x)B2O3-18Bi2O3-10ZnO-xEr2O3-1Yb2O3 (FBZEY) fluorine bismuth borate glass was prepared by a high-temperature melting method. XRD analysis showed that all glass samples were amorphous. The differential thermal analysis determined that ΔT of the glass was 107 °C, and it had good thermal stability. The role of doped rare earth ions in the matrix structure was studied using infrared spectroscopy. The near-infrared spectrum of the glass samples shows a wider peak corresponding to the 4I13/2→4I15/2 transition at 1530 nm at 980 nm excitation. When Er3+/Yb3+ is simultaneously located on 4I11/2, Yb3+ transfers energy to Er3+, converts it to 4F7/2 and returns itself to the ground state 4I15/2, thus greatly improving the optical properties of fluorescent glasses. By up-conversion spectra, it can be found that high energy emission photons can be obtained by using low energy excitation sources. Fluorescence attenuation analysis shows that the fluorescence lifetimes of FBZE1Y, FBZE3Y and FBZE5Y were 0.36 ms, 0.59 ms and 0.67 ms, respectively. The results show that the fluorine bismuth zinc glass sample has potential application value for enhancing up-conversion optical devices and amplifiers.
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