Spectroscopic Properties And Thermal Stability Of Er³⁺-doped Bismuth And Tellurite Glass

Aiming at the needs of bandwidth of bandwidth of EDFA in modern times,new sort of amplifier glasses materials was designed.In this paper, solid-state reaction method were prepared by different types of Er3+-doped Bismuth-based glass, analysis of the impact of erbium-doped Bismuth-based glass bandwidth factors, testing the absorption and fluorescence spectra, differential thermal performance and energy conversion. And in accordance with the test results using Judd-Ofelt theory and the theory of McCumber analysis of the spectral properties of these materials and the physical and chemical properties, to discuss the impact of exploration O2, O4,06 factors.According to the above, we prepared several new types of fiber amplifiers that glass materials, in which erbium-doped bismuth silicate glass for fluorescence FWHM 83nm, Er3+:4I13/2→4I5/2 stimulated emission cross-section of a maximum of 0.984 x 10-20 cm2, glass crystallization temperature Tx and the glass transition temperature Tg difference (ΔT=Tx-Tg) of up to 176℃. Erbium-doped bismuth germanium telluride glasses of their stimulated emission cross-section values and effective values were fired bandwidth 1.85×10-20cm2 and 103nm, AT max of 131℃, Observed the up-conversion luminescence in the experiment, analysis of the process of up-conversion luminescence. With the increaseing WO3; upconversion luminescence enhanced first and then weakened, when the WO3 content of 15%, the upconversion luminescence worst. The strength parameters of Er+in glasses calculated according to the Judd-Oflet theory of Er3+/Yb3+co-doped TeO2-WO3-Bi2O3 glasses. Along with Bi2O3 content increasing, O2 increase, O4,06 gradually decrease. The broad 1.5μm fluorescence was observed under 976nm dxcitation,and its full width at half maximum(FWHM) is 96nm. The stimulated calculated using the McCumber theory,and the peak emission cross-section is 0.70 x 10-20 cm2at 1.5μm. the product of stimulated emission cross section and fluorescence of FWHM is 60.2cm nm. At the same time, there is an obvious phenomenon of fluorescence up-conversion of Er3+/Yb3+co-doped TeO2-WO3-Bi2O3 glasses under 976nm pumped, in the intensity of the conversion gradually weakened with the increasing of Bi2O3 content.