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首页> 外文会议>Society of Photo-Optical Instrumentation Engineers Conference on Photonic Crystal Materials and Devices >Mechanical and optical behavior of index guiding photonic crystal fibers (PCF)
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Mechanical and optical behavior of index guiding photonic crystal fibers (PCF)

机译：指导光子晶体纤维（PCF）的机械和光学行为

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The optical loss behavior of index guiding PC fibers made from high purity silica, was investigated with regard to the preform preparation steps and drawing procedure. Loss effects in the 1.4 μm region are caused mostly by incorporation of hydroxide groups during PC preform preparation. Typical sources are flame heat treatment procedures. However, hydroxide based absorption by water permeation into the holey structure was not observed, not even by storage in humid atmosphere over days. PCFs show additional NIR attenuation, possibly caused by drawing induced atomic defects in the pure silica material. By advanced PC preform preparation the minimum attenuation in the NIR range can be depressed down to 2.9 dB/km at 1.3 μm. PCFs have a reduced tensile strength in comparison with compact silica fibers. The mechanical stability increases with the cross section area of the solid outer cladding. This resembles the behavior of single capillary fibers without inner holey or cobweb structure. The tensile strength of PCFs decreases after a few days of hole contamination with condensed water.
机译：关于预制件制备步骤和拉伸程序，研究了由高纯度二氧化硅制成的索引引导PC纤维的光学损耗行为。在PC预制件制备期间掺入氢氧化物的1.4μm区域中的损失效应主要是引起的。典型的来源是火焰热处理程序。然而，未观察到通过水渗透到孔结构中的氢氧化物的吸收，甚至通过潮湿气氛中的储存而不是潮湿的气氛。 PCFS显示额外的NIR衰减，可能是由纯二氧化硅材料中的诱导原子缺陷引起的。通过先进的PC预制件制备NIR范围内的最小衰减可以将下降至2.9 dB / km，1.3μm。与致密的​​二氧化硅纤维相比，PCF具有降低的拉伸强度。机械稳定性随着固体外包层的横截面面积增加。这类似于单毛细纤维而没有内部多孔或蜘蛛网结构的行为。在用冷凝水的孔污染几天后，PCFS的拉伸强度降低。

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