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首页> 外文期刊>Journal of Lightwave Technology >Optical fiber splice loss predictions from one-way OTDR measurements based on a probability model
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Optical fiber splice loss predictions from one-way OTDR measurements based on a probability model

机译：基于概率模型的单向OTDR测量的光纤熔接损耗预测

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摘要

It is well known that one-way optical time-domain reflectometry (OTDR) measurement contains a false contribution to the splice loss due to statistical fluctuations in light scattering among fibers. Using a large amount of collected data over splice losses from field installations, a two-dimensional probability distribution function with the actual splice loss and the one-way measured OTDR discontinuity as variables was fitted to the data. The five parameters of the chosen probability distribution were determined numerically from the observed data. The probability of keeping the splice loss below a target value based on the observed one-way OTDR reading was calculated and can be displayed in a curve or a table of values. The agreement between theory and experimental values is satisfactory for standard match clad single-mode fibers measured at 1.3- mu m wavelength.
机译：众所周知，由于光纤间光散射的统计波动，单向光时域反射法（OTDR）测量对拼接损耗有虚假的贡献。使用从现场安装获得的大量熔接损耗数据，将具有实际熔接损耗和单向测量OTDR不连续性作为变量的二维概率分布函数拟合到数据中。从观察到的数据以数字方式确定所选概率分布的五个参数。计算出基于观察到的单向OTDR读数将接头损耗保持在目标值以下的概率，该概率可以显示在曲线或值表中。理论和实验值之间的一致性对于在1.3微米波长下测量的标准匹配包层单模光纤是令人满意的。

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