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首页> 外文期刊>Applied optics >Demonstration of a homogeneous Yb-doped core fully aperiodic large-pitch fiber laser
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Demonstration of a homogeneous Yb-doped core fully aperiodic large-pitch fiber laser

机译：均质Yb掺杂纤芯全非周期性大间距光纤激光器的演示

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The first demonstration of a 40 mu m core homogeneously ytterbium-doped fully aperiodic large-pitch fiber laser, to the best of our knowledge, is reported here. In this concept, the amplification of unwanted high-order modes is prevented by means of an aperiodic inner-cladding structure, while the core and inner-cladding material has a higher refractive index than pure silica. In a laser configuration, up to 252 W of extracted power, together with an optical-to-optical efficiency of 63% with respect to the incident pump power, have been achieved. While an average M-2 of 1.4 was measured, the emitted power becomes temporally unstable when exceeding 95 W, owing to the occurrence of modal instabilities. (C) 2016 Optical Society of America
机译：据我们所知，首次报道了一个40μm纤芯的均匀掺全非周期性大间距光纤激光器。在这个概念中，通过非周期性的内包层结构可以防止不必要的高阶模的放大，而纤芯和内包层的折射率要比纯二氧化硅高。在激光配置中，已实现高达252 W的提取功率，以及相对于入射泵浦功率的63％的光学效率。当测得平均M-2为1.4时，由于出现模态不稳定性，当超过95W时，发射功率在时间上变得不稳定。 （C）2016美国眼镜学会

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