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Multipath interference characterization of bend-insensitive optical fibers and short jumpers

机译:弯曲不敏感的光纤和短跳线的多径干扰特性

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Multipath interference (MPI) in bend-insensitive optical fibers is investigated by analyzing different aspects, ranging from a review of the theoretical background, through the analysis of measurement issues, to the characterization of short patch cords. Two setups for the characterization of MPI are analyzed, highlighting their advantages and limitations. Then, a number of commercial bend-insensitive fibers are compared, showing that they generally exhibit a level below -30 dB in the range of 1250-1350 nm. The investigation also includes short offset-spliced fiber segments, with lengths to 1 cm, to simulate the behavior of field-installable connectors and isolate their contribution to the MPI. The results show a step-like increment of MPI when two or more cm-long fiber segments are cascaded. (C) 2016 Optical Society of America
机译:通过分析不同方面来研究对弯曲不敏感的光纤中的多径干扰(MPI),从回顾理论背景到分析测量问题,再到表征短跳线。分析了两种表征MPI的设置,突出了它们的优点和局限性。然后,比较了许多商用的弯曲不敏感光纤,显示它们通常在1250-1350 nm范围内显示低于-30 dB的水平。该调查还包括长度为1 cm的短偏移拼接光纤段,以模拟可现场安装的连接器的行为并隔离它们对MPI的影响。结果显示,当两个或更多厘米长的纤维段级联时,MPI呈阶梯状增加。 (C)2016美国眼镜学会

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