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1.53 μm luminescent properties and energy transfer processes of Er3+/Yb3+ co-doped bismuth germanate glass laser material
Journal of Luminescence ( IF 3.3 ) Pub Date : 2021-07-06 , DOI: 10.1016/j.jlumin.2021.118300
Fang Tan 1 , Pengfei Xu 2 , Dechun Zhou 2 , Lili Wang 1 , Qiang Yang 1 , Xiangyang Song 2 , Kexuan Han 2
Affiliation  

In this work, Er3+/Yb3+ co-doped 40Bi2O3-30GeO2-15Ga2O3-15Na2O glass was papered by melt-quenching method. The thermal properties and spectroscopic were studied. The glass has good thermal stability and the maximum phonon energy is 750 cm−1, which is benefited for 1.53 μm emission. According to the J-O theory and absorption spectra, the J-O intensity parameters were calculated, the spectral quality factor χ = Ω46 of BGGN4 glass is 2.236. Under 980 nm excitation, the 1.53 μm luminescence characteristics of these glasses were studied. When the Er3+/Yb3+ ions doping concentration ratio (mol%) reaches 0.5:1.0, the maximum fluorescence intensity can be obtained, and the maximum emission cross section is 6.4 × 10−21cm2. The maximum stimulated gain coefficient in the 1.53 μm band is 4.6 cm−1. Finally, the up-conversion emission and energy transition mechanism of Er3+/Yb3+ co-doped BGGN glass were studied. The results indicate the prepared Er3+/Yb3+ co-doped bismuth germanate glass have good gain performance and is an ideal 1.53 μm laser gain material.



中文翻译:

Er3+/Yb3+共掺锗酸铋玻璃激光材料的1.53 μm发光特性及能量转移过程

本工作采用熔融淬火法对Er 3+ /Yb 3+共掺杂40Bi 2 O 3 -30GeO 2 -15Ga 2 O 3 -15Na 2 O 玻璃进行纸化。研究了热性能和光谱。该玻璃具有良好的热稳定性,最大​​声子能量为750 cm -1,有利于1.53 μm的发射。根据JO理论和吸收光谱,计算出JO强度参数,BGGN4玻璃的光谱品质因数χ = Ω 46为2.236。在 980 nm 激发下,研究了这些玻璃的 1.53 μm 发光特性。当尔3+ /Yb 3+离子掺杂浓度比(mol%)达到0.5:1.0,可获得最大荧光强度,最大发射截面为6.4×10 -21 cm 2。1.53 μm 波段的最大受激增益系数为4.6 cm -1。最后,研究了Er 3+ /Yb 3+共掺杂BGGN玻璃的上转换发射和能量跃迁机制。结果表明,制备的Er 3+ /Yb 3+共掺杂锗酸铋玻璃具有良好的增益性能,是一种理想的1.53 μm激光增益材料。

更新日期:2021-07-16
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