文献类型：期刊文献

中文题名：SiO_2-Bi_2O_3-BaF_2-AlPO_4玻璃掺杂Ho^(3+)/Tm^(3+)/Yb^(3+)的发光性能

英文题名：Spectroscopic Properties of Ho^(3+)/Tm^(3+)/Yb^(3+) co-Doped SiO_2-Bi_2O_3-BaF_2-AlPO_4 Glass

作者：厉宇翔[1];邓声玉[1];范亚蕾[1];王德强[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2018

卷号：44

期号：2

起止页码：223

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

语种：中文

中文关键词：2μm发光;Ho;3+/Tm;3+/Yb;3+共掺;铋硅酸盐玻璃

外文关键词：2μm emission;Ho 3+/Tm 3+/Yb 3+co-doped;bismuth silicate glass

摘要：以铋硅酸盐玻璃(SiO_2-Bi2O_3-BaF_2-AlPO_4)为基质,通过掺杂Ho^(3+)、Tm^(3+)、Yb^(3+)稀土离子,制备激光波长为2μm的光纤激光器。对玻璃的声子能量、物理和光学性能进行了研究,确定基质配方为50SiO_2-40Bi_2O_3-5BaF_2-5AlPO_4(SBBA,其中化学式前的系数为对应物质的摩尔分数,下同)。在玻璃基质中分别掺杂0.5Ho_2O_3-2.0Yb_2O_3(HY)、0.5Ho_2O_3-0.5Tm_2O_3-2.0Yb_2O_3(0.5HTY)及0.75Ho_2O_3-0.75Tm_2O_3-3.0Yb_2O_3(0.75HTY),研究了980nm激发波长下样品的吸收、发射光谱和Judd-Oflet理论光谱参数。研究发现SBBA-0.75HTY中Ho^(3+)的吸收截面、发射截面(σem)、FWHM(半峰宽)×σem数值最大,分别为7.38×10^(-21)、10.54×10^(-21) cm^2和19.71×10^(-26) cm^3。掺入Tm_2O_3改善了玻璃激光器性能,且当Yb^(3+)/Tm^(3+)/Ho^(3+)物质的量之比一定时,增加稀土离子含量,可加强红外发光及增益效果。
Fiber laser in 2μm spectral region can attach great importance,not only on health care,but also in laser radar,air monitoring and other fields such as environmental pollution.Due to its important application in the medical field,fiber laser in 2μm spectral region opened the floodgates to new research.Compared to other glass matrixes,silicate glass has low cost,good chemical stability,but high phonon energy,high melting temperature,low rare earth ion solubility,difficult to realize miniaturization of equipment and other shortcomings.The introduction of bismuth oxide in silicate glass Bi 2O 3,can reduce the phonon energy,melting temperature and increase the solubility of rare earth ions.Meanwhile,the O-H in the glass hosts can be removed with increasing concentration of fluorine ions in the glass,and thus improve 2μm infrared luminous performance.Therefore bismuth silicate glass is considered as an ideal near-mid-infrared light-emitting material.The bismuth silicate glass SiO 2-Bi 2O 3-BaF 2-AlPO 4 doped with Ho 3+/Tm 3+/Yb 3+is prepared by high-temperature melt-quenching method.Compared with physical properties,phonon energy and optical performance,50SiO 2-40Bi 2O 3-5BaF 2-5AlPO 4(SBBA)is the appropriate glass host.The spectroscopic properties of bismuth silicate exited by 980 nm laser diode were investigated.The Judd-Ofelt parameters and radiative lifetime of Ho 3+in SBBA doped with 0.5Ho 2O 3-2.0Yb 2O 3(HY),0.5Ho 2O 3-0.5Tm 2O 3-2.0Yb 2O 3(0.5HTY),0.75 Ho 2O 3-0.75Tm 2O 3-3.0Yb 2O 3(0.75HTY)respectively,were calculated based on the absorption spectra.The maximal absorption and emission cross sections(σem)of Ho 3+are 7.38×10-21,10.54×10-21 cm 2,respectively,while the largest FWHM×σem achieves 19.71×10-26 cm 3 in SBBA-0.75HTY.The results of fluorescence spectra suggest more efficient application in 2μm fiber lasers of Ho 3+,Tm 3+and Yb 3+co-doped bismuth silicate than Ho 3+and Yb 3+co-doped bismuth silicate.SiO 2-Bi 2O 3-BaF 2-AlPO 4 doped with Ho 3+/Tm 3+/Yb 3+can attach better infrared light-emitting performance and gain effect with high doping concentration in a fixed ratio of rare earth ions.