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Erbium-doped glass showing the wider 1.5-/μm emission band is reported in a novel oxide system TeO2-WO3-Nb2O5 and their thermal stability and optical properties such as absorption,emission spectra,cross-sections and fluorescence lifetime were investigated.Compared with other glass hosts,the gain bandwidthproperties of Er3+ in TWN glass is close to that of bismuth glasses,and larger than those of tellurite,germanatc,silicate and phosphate glasses.The broad and flat 4I13/2 → 4I15/2 emission and the largestimulated emission cross-section of Er3+ ions around 1.5 μm can be used as host material for potentialbroadband optical amplifier in the wavelength-division-multiplexing(WDM)network system. 相似文献
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Dy^3+掺杂的氟锆酸盐玻璃的光谱性质 总被引:1,自引:0,他引:1
测量了氟锆酸盐玻璃中Dy^3+离子的吸收光谱和荧光光谱。根据Dy^3+离子的吸收光谱,得到氟锆酸盐玻璃中Dy^3+离子的J-O参量Ω,Ω3.29×^20cm^2,Ω4=1.56×10^20cm^2,Ω6=2.48±10^20cm^2,经计算了氟锆酸盐玻璃中y^3+离子的发射特性,计算了Dy^3+离子1.3μm发射的^6F11/2(6H9/2)→6H15/2跃迁的发射截面σ=0.62×10^-20c 相似文献
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800nm激发下AlF3基氟化物玻璃中高掺杂Er3+的上转换光谱性质 总被引:3,自引:0,他引:3
在800nm激光二极管激发下,研究高掺杂Er^3+(摩尔比大于3%)的AlF3基(AYF、AZF)玻璃的红外-可见上转换发光性质。在AYF玻璃中,550nm绿光上转换最佳Er^3+掺杂摩尔比为6%,而在AZF玻璃中为12%。随着Er^3+掺杂量的增加,红光与绿光上转换发光强度比(Ir/Is)增加。这被认为与两个Er^3+离子(一个在4I0/2态、另一个在^4S3/2)的交叉弛豫过程有关。同时由于此 相似文献