文章基本信息

标题：The effect of La₂O₃ in Tm³⁺-doped germanate-tellurite glasses for ~2 μm emission
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作者：Ya-Pei Peng ; Xinqiang Yuan ; Junjie Zhang 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2014
卷号：4
DOI：10.1038/srep05256
出版社：Springer Nature
摘要：A germanate-tellurite glass (GeO₂-TeO₂-K₂O-Nb₂O₅-La₂O₃) with thulium doping has been investigated for application as a laser material around 2.0 μm regions. Under the 808 nm laser diode pumped, intense 1.8 μm emission is obtained. Based on the absorption spectra, radiative properties are predicted using Judd-Ofelt theory. The maximum value of emission cross-section of Tm³⁺ around 1.8 μm can reach 1.46 × 10⁻²⁰ cm², which indicated that the germanate-tellurite glass may provide high gain as a good medium for efficient 1.8 μm laser system.