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Effect of WO3 on the spectroscopic properties in Er/Yb co-doped bismuth–borate glasses |
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| Authors: | Jun Wang Yaxun Zhou Shixun Dai Tiefeng Xu Qiuhua Nie |
| Affiliation: | aFaculty of Information Science and Engineering, The State Key Laboratory Base of Novel Functional Materials and Preparation Science, Ningbo University, Zhejiang 315211, PR China bCollege of Optoelectronic Engineering, Chongqing University, Chongqing 400044, PR China |
| Abstract: | The spectroscopic properties of Er3+/Yb3+ co-doped Bi2O3–B2O3–WO3 (BBW) glasses were analyzed and discussed. The effect of WO3 content on the absorption spectra, the Judd–Ofelt parameters Ωt (t=2, 4, 6), emission spectra and the lifetime of the 4I13/2 level and the quantum efficiency of Er3+:4I13/2→4I15/2 transition were also investigated. With the substitution of WO3 for B2O3, the measured lifetime of the 4I13/2 level and the quantum efficiency of Er3+:4I13/2→4I15/2 transition increase from 0.98 to 1.31 ms and from 38.2% to 49.2%, respectively. The effective width of emission band and the emission cross-section both decrease slightly. And the emission spectra is analyzed via the different curve (σe−σa) of BBW glasses, the influence of OH−is also discussed. |
| Keywords: | Er3+/Yb3+ co-doped Bi2O3–B2O3–WO3 glasses Spectroscopic properties |
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