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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Rare-earth doped tungsten tellurite glasses and waveguides: fabrication and characterization
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Rare-earth doped tungsten tellurite glasses and waveguides: fabrication and characterization

机译：稀土掺杂钨碲酸盐玻璃和波导：制造和表征

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摘要

Tungsten tellurite glasses doped with Er3+, Tm3+, Pr3+, and Ho3+ ions were prepared by melt quenching. The glass matrix was the same for all types of glasses and had a high sodium content in order to allow the fabrication of waveguides using an ion-exchange technique. The absorption spectra of the glasses were measured and the Judd-Ofelt parameters Omega(q), were obtained from the experimental oscillator strengths of the f --> f transitions. Er3+ doped glasses showed a very high quantum efficiency when comparing the calculated radiative decay time with the measured lifetime of the I-4(13/2) metastable level. Ag+ <----> Na+ ion-exchanged planar waveguides were successfully obtained in all types of glasses and characterized by the prism coupling technique. It turned out that the diffusion constant values are very similar for glasses containing different rare-earth ions with the same concentration, while, at least for the Er3+ doped ones, the diffusion constant changes with the ions concentration. (C) 2004 Elsevier B.V. All rights reserved.
机译：通过熔融淬火制备掺有Er3 +，Tm3 +，Pr3 +和Ho3 +离子的钨碲酸盐玻璃。对于所有类型的玻璃来说，玻璃基质都是相同的，并且钠含量高，以便允许使用离子交换技术制造波导。测量了玻璃的吸收光谱，并从f-> f跃迁的实验振荡器强度获得了Judd-Ofelt参数Omega（q）。当将计算的辐射衰减时间与I-4（13/2）亚稳能级的测量寿命进行比较时，掺Er3 +的玻璃显示出很高的量子效率。在所有类型的玻璃中均成功获得了Ag + ----- Na +离子交换平面波导，并通过棱镜耦合技术对其进行了表征。结果表明，对于包含相同浓度的不同稀土离子的玻璃，扩散常数值非常相似，而至少对于掺Er3 +的玻璃，扩散常数随离子浓度而变化。 （C）2004 Elsevier B.V.保留所有权利。

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