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首页> 外文会议>Proceedings of the Fourteenth annual directed energy symposium (including directed energy education workshop). >Erbium-Doped Glasses as Potential Fiber Gain Media
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Erbium-Doped Glasses as Potential Fiber Gain Media

机译：掺Glasses玻璃作为潜在的光纤增益介质

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摘要

Rare earth doped glasses display relatively strong absorption bands, sharp fluorescentrnlines, and moderate to high quantum efficiency for the fluorescence transition of interest. Glassesrnhave great optical qualities and can be drawn into fibers for high power fiber lasers. Erbiumdopedrnglass is particularly important because its emission peak of 1.55μm, arising from therntransition between 4~I_(15/2) and ~4I_(13/2) manifolds, is great for various military applications where eyernsafety is a concern. In this study, we investigated samples of a particular glass with 0.7％, 1％,rnand 3% Er~(3+) as candidates for fiber amplifiers. Absorption spectroscopy was performed on thernsamples at room and low temperature and was used to predict the stimulated emission crossrnsection spectra from absorption cross section through reciprocity. Fluorescence data was used tornobtain the stimulated emission cross section spectra using the Fuchtbauer-Ladenburg relation forrncomparison with that obtained through reciprocity. We obtain cross sections that are veryrnreasonable for Er~(3+)-doped fiber materials, but uncertainty in the Er~(3+) concentration of the 3%rnsample leaves uncertainty as to its exact cross section sizes. Additionally, the fluorescencernlifetime decreases with temperature, but modeling suggests that this may be due to radiativernprocesses, rather than any quenching.
机译：掺杂稀土的玻璃显示出相对较强的吸收带，清晰的荧光线，并且对感兴趣的荧光跃迁具有中等至高的量子效率。眼镜具有很高的光学质量，可以拉制成高功率光纤激光器的光纤。掺ped玻璃尤为重要，因为它的发射峰为1.55μm，这是由于4〜I_（15/2）和〜4I_（13/2）歧管之间的过渡而产生的，对于关注眼部安全性的各种军事应用而言，它非常重要。在这项研究中，我们研究了一种具有0.7％，1％，rn和3％Er〜（3+）的特定玻璃样品作为光纤放大器的候选材料。在室温和低温下对样品进行吸收光谱，并用于从吸收截面到互易性来预测受激发射截面光谱。荧光数据用于通过Fuchtbauer-Ladenburg关系式与通过互易获得的关系来获得受激发射截面光谱。我们得到的横截面对于掺有Er〜（3+）的纤维材料来说是非常合理的，但是3％rnsample样品的Er〜（3+）浓度的不确定性却使不确定的确切横截面尺寸。另外，荧光寿命随着温度降低，但是建模表明这可能是由于辐射过程，而不是任何猝灭。

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