The emission properties of 2-um region fluorescence of Tm^3+-Ho^3+ co-doped tellurite glasses are investigated. Introducing F- ions to the composition of tellurite glasses plays a positive effect on the 2-#m emissio...The emission properties of 2-um region fluorescence of Tm^3+-Ho^3+ co-doped tellurite glasses are investigated. Introducing F- ions to the composition of tellurite glasses plays a positive effect on the 2-#m emission. A maximum intensity of 2-um emission is achieved when 1.5-mol% Tm2O3 and 1-mol% Ho203 concentration are doped in the glasses. The emission cross section and gain coefficient of the ^5I8-^5I7 transition of Ho^3+ are calculated. The emission cross section has a maximum of 1.29×10-20 cm^2 at 2048 nm wavelength. The results indicate that Tm&3+-Ho^3+ co-doped tellurite glasses are suitable for 2-um application.展开更多
Thermal stability and 2μm fluorescence of high and low Al(POa)3 content of fluorophosphate glasses are investigated. Thermal stability of high Al(PO3)3 content of fluorophosphate glass is better than low Al(PO3...Thermal stability and 2μm fluorescence of high and low Al(POa)3 content of fluorophosphate glasses are investigated. Thermal stability of high Al(PO3)3 content of fluorophosphate glass is better than low Al(PO3)3 content of fluorophosphate glass. However, 2.04-μm fluorescence intensity of high Al(PO3)3 content of fluorophosphate glass is only 48.2, lower than low AI(PO3)3 content of fluorophosphate glass. Raman spectroscopy is employed to investigate the difference in thermal stability and 2-μm fluorescence. Moreover, fuorescence peak intensity ratios of 2.04 to 1.81 μm and 2.04 to 1.57μm are calculated, which indicate that Er-Tm-Ho doped fluorophosphate glasses are suitable materials in 2μm applications.展开更多
基金supported by the National"863"Program of China(No.2007AA03Z441)the National Natural Science Foundation of China(Nos.60607014 and 50572110)
文摘The emission properties of 2-um region fluorescence of Tm^3+-Ho^3+ co-doped tellurite glasses are investigated. Introducing F- ions to the composition of tellurite glasses plays a positive effect on the 2-#m emission. A maximum intensity of 2-um emission is achieved when 1.5-mol% Tm2O3 and 1-mol% Ho203 concentration are doped in the glasses. The emission cross section and gain coefficient of the ^5I8-^5I7 transition of Ho^3+ are calculated. The emission cross section has a maximum of 1.29×10-20 cm^2 at 2048 nm wavelength. The results indicate that Tm&3+-Ho^3+ co-doped tellurite glasses are suitable for 2-um application.
基金supported by the National "863" Project of China (No.2007AA03Z441)the National Natural Science Foundation of China (Nos. 50572110 and 60607014)
文摘Thermal stability and 2μm fluorescence of high and low Al(POa)3 content of fluorophosphate glasses are investigated. Thermal stability of high Al(PO3)3 content of fluorophosphate glass is better than low Al(PO3)3 content of fluorophosphate glass. However, 2.04-μm fluorescence intensity of high Al(PO3)3 content of fluorophosphate glass is only 48.2, lower than low AI(PO3)3 content of fluorophosphate glass. Raman spectroscopy is employed to investigate the difference in thermal stability and 2-μm fluorescence. Moreover, fuorescence peak intensity ratios of 2.04 to 1.81 μm and 2.04 to 1.57μm are calculated, which indicate that Er-Tm-Ho doped fluorophosphate glasses are suitable materials in 2μm applications.