【摘 要】
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Phosphate glass doped with rare earth ions has advantages like large emission cross-section,high gain coefficient and high quantum efficiency.But it has disadvantages including loose glass structure,l
【机 构】
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Engineering Research Center of Optoelectronic Functional Materials,Ministry of Education,Changchun U
【出 处】
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第八届中国功能玻璃学术研讨会暨新型光电子材料国际论坛
论文部分内容阅读
Phosphate glass doped with rare earth ions has advantages like large emission cross-section,high gain coefficient and high quantum efficiency.But it has disadvantages including loose glass structure,large coefficient of thermal expansion,low soft point,bad chemical stability and high contain of OHˉ will shorten the fluorescence lifetime and reduce the quantum efficiency.Thermal stability and chemical stability can be improved by introducing F2、Al2O3 and Y2O3 into P2O5-Al2O3-MgO glass system;OHˉ group can be removed out by the gas atmosphere produced during the chemical reaction.Through these works,the thermal expansion coefficient of phosphate glass was reduced to 40.5×10-7/℃,spectroscopic properties could be optimized,and the appliance fields could be broadened too.
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