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Experimentally and analytically derived generalized model for the detection of liquids with suspended-core optical fibers

机译：实验和分析得出的悬浮芯光纤检测液体的广义模型

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摘要

A generalized model for the detection of liquids within suspended-core microstructured optical fibers has been experimentally and theoretically derived. The sensor detection is based on the refractometric principle of transmission losses due to the overlap of the evanescent field with the liquid analyte. A number of parameters, including fiber core diameter and filling length, have been included in the general model. Specially tailored suspended-core fibers were manufactured with the core diameters within the range of 2.4 mu m to 4.0 mu m. Five selected liquid analytes were used to cover the refractive index range of 1.35 to 1.42. Based on experiments, the characteristics of the parameters of the semi-empirical model have been determined by a genetic algorithm using 283 measurement data sets. The model can be used to design sensors for the detection of liquid analytes as it provides a set of parameters allowing to optimize the sensor's sensitivity for a wide scale of applications. Finally, numerical simulations of the system were carried out by an eigenmode routine to support the results of the generalized model.
机译：已经通过实验和理论推导了用于检测悬浮芯微结构光纤中的液体的通用模型。传感器的检测基于瞬逝场与液体分析物的重叠导致的传输损耗的折光率原理。通用模型中包括了许多参数，包括纤芯直径和填充长度。制造了特别定制的悬浮芯纤维，其芯直径在2.4μm至4.0μm的范围内。使用五种选定的液体分析物来覆盖1.35至1.42的折射率范围。基于实验，已通过遗传算法使用283个测量数据集确定了半经验模型的参数特征。该模型可用于设计用于检测液体分析物的传感器，因为该模型提供了一组参数，可针对广泛的应用优化传感器的灵敏度。最后，通过特征模式例程对系统进行了数值模拟，以支持广义模型的结果。

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