The Research On Rare Earth Doped Oxyfluoride Laser Glass-ceramics

In order to further study the blue and green visible band up-conversion emission mechanism of rare earth-doped material, and research on the energy level structure and spectral characteristics of rare earth ions in glass-ceramics glass-ceramics, the different host glasses of oxyfluoride laser glass-ceramics were prepared by conventional melting method. The samples were tested and characterized.The suitable melting temperature and annealing temperature of the rare earth-doped glass-ceramics were determined by differential thermal analysis curve. The absorption spectrum and up-conversion fluorescence emission spectrum pumped by 980nm LD were measured, and the relationship between up-conversion luminescence intensity and LD pump power were studied. At the same time, the Raman spectrum and SEM of the samples were analyzed.The result showed that: the red light and the green light up-conversion mechanism of Yb³⁺/Er³⁺ co-doped oxyfluoride aluminum borate glasses are both two-photo process. The grain sizes of the crystallites in the samples have been tested and the range is between 30nm and 50nm.