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首页> 外文会议>Fiber lasers XI: technology, systems, and applications >Fabrication of microstructured fibers from preforms with sealed top-end holes
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Fabrication of microstructured fibers from preforms with sealed top-end holes

机译：由具有密封顶端孔的预成型坯制造微结构纤维

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摘要

Theoretical aspects of microstructured fibers fabrication from preforms with sealed holes at the top end are discussed. Dependences of the holes blowing degree on their diameters, on a ratio of the preform top end temperature to temperature in the center of a furnace and on other parameters are estimated. Experimental results of different microstructured fibers drawing in such a regime are presented. We have drawn the simplest microstructured fiber with one hole from a tube with outside diameter 6.2 mm and inner diameter 4.4 mm (capillary drawing). Also we have drawn MSFs from preforms with 6 and 60 small holes. To check the results of the theoretical analysis we have prepared a preform with different size holes and then drew it into a fiber. In all cases experimental results are in good agreement with theoretical estimations. Thus this method of fabrication gives the possibility to manufacture long length microstructured fibers with stable internal structural parameters, high reproducibility, ease of controlling and changing the fibers parameters and opportunity to make structures with holes of different sizes. The observed changes of the holes blowing degree in our experimental samples can be easily compensated with the help of additional heating of the preform top end. Besides, such heating makes it possible to control and change the holes blowing degree, particularly during the fibers drawing process.
机译：讨论了由在顶端具有密封孔的预成型件制造微结构纤维的理论方面。估计吹孔程度取决于它们的直径，预成型坯顶端温度与炉中心温度的比率以及其他参数。提出了在这种情况下拉伸不同的微结构纤维的实验结果。我们从一根外径为6.2 mm，内径为4.4 mm的管子（毛细管图）中拉出了一个最简单的微结构化纤维，它带有一个孔。此外，我们还从具有6和60个小孔的瓶坯中提取了MSF。为了检查理论分析的结果，我们准备了具有不同尺寸孔的预成型件，然后将其拉制成纤维。在所有情况下，实验结果均与理论估计吻合。因此，这种制造方法使得能够制造具有稳定的内部结构参数，高可再现性，易于控制和改变纤维参数的长微结构化纤维以及制造具有不同尺寸的孔的结构的可能性。借助于预成型坯顶端的额外加热，可以轻松地补偿我们的实验样品中观察到的打孔程度的变化。此外，这种加热使得可以控制和改变孔的吹制度，特别是在纤维拉伸过程中。

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