Large improvement in quantum fluorescence yield of Er3+-doped fluorozirconate and fluoroindate glasses by Ce3+ codoping
Large improvement in quantum fluorescence yield of Er3+-doped fluorozirconate and fluoroindate glasses by Ce3+ codoping
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DOI：
10.1063/1.1287229
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发表时间：
2000-08
影响因子：
3.2
通讯作者：
Z. Meng;T. Yoshimura;K. Fukue;M. Higashihata;Y. Nakata;T. Okada
中科院分区：
文献类型：
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作者：
Z. Meng;T. Yoshimura;K. Fukue;M. Higashihata;Y. Nakata;T. Okada
报道了不同Ce ~（3+）：Er ~（3+）共掺氟化物基质玻璃（如氟锆酸盐玻璃和氟铟酸盐玻璃）的荧光特性。结果表明，Ce ~（3+）共掺杂使Er ~（3+）离子从4 I ~（11/2）态猝灭到4 I ~（13/2）态，共掺杂2.0mol%Ce ~（3+）使Er ~（3+）4 I ~（11/2）→ 4 I ~（13/2）跃迁的分支比从0.20增加到0.80以上。此外，在1.55 μm处的荧光量子产率也显著提高。首次实现了980 nm激发的1.55 μm波段Ce ~（3+）：Er ~（3+）共掺氟锆酸盐光纤激光器，表明了Ce ~（3+）共掺的有效性。
The fluorescence characteristics of different Ce3+:Er3+-codoped fluoride host glasses, such as fluorozirconate and fluoroindate glass, are reported. It is shown that Ce3+ codoping into Er3+ doped fluoride glasses resulted in a quenching of Er3+ ions from the 4I11/2 to the 4I13/2 state, and the branching ratio for the Er3+ 4I11/2→4I13/2 transition increased from 0.20 to over 0.80 by codoping 2.0 mol % Ce3+. Further, the fluorescence quantum yield at 1.55 μm was also significantly improved. A Ce3+:Er3+-codoped fluorozirconate fiber laser operating at 1.55 μm band with 980 nm excitation has been realized for the first time, which clearly indicates the effectiveness of Ce3+ codoping.