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Excited-state-absorption cross sections and amplifier modeling in the 1300-nm region for Nd-doped glasses

机译:掺钕玻璃在1300 nm区域的激发态吸收截面和放大器模型

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摘要

The performance of Nd/sup 3+/-doped fibre amplifiers is limited by strong excited-state absorption (ESA) of the signal, and, even for fluorozirconate glasses, ESA prevents the important region below 1320 nm from being used. To quantify this limitation and explore alternative host materials, ESA and stimulated-emission cross sections have been measured for a representative group of glass compositions. These parameters have been used in an accurate fiber-amplifier model to provide the first quantitative comparisons of performance for Nd/sup 3+/-doped glasses in the 1300-nm band as a function of host.
机译:Nd / sup 3 +/-掺杂光纤放大器的性能受到信号的强激发态吸收(ESA)的限制,即使对于氟锆酸盐玻璃,ESA也会阻止使用1320 nm以下的重要区域。为了量化此限制并探索替代的主体材料,已对一组代表性的玻璃组合物测量了ESA和受激发射截面。这些参数已用于精确的光纤放大器模型中,以提供对1300 nm波段Nd / sup 3 +/-掺杂玻璃作为宿主函数的性能的首次定量比较。

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