多模光纤传感器的数值模拟

2008 12th International Conference on Mathematical Methods in Electromagnetic Theory Pub Date : 2008-07-29 DOI:10.1109/MMET.2008.4580904

S. Khotiaintsev

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引用次数: 2

摘要

介绍了多模光纤倏逝场传感器的数值模拟。研究的重点是采用多模塑料光纤和塑料光学检测元件的传感器。采用射线追踪模型，辅以模式耦合和由测量得到的模式相关衰减。结果表明，在光纤相对较短的情况下，特定光源的特性、光沿光纤分布的演变以及塑料材料的有限非均匀性对传感器特性有显著影响。

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Numerical modeling of multimode optical fibre sensors

The numerical modeling of the multimode optical-fiber evanescent-field sensors is described. The work is focused on sensors which employ essentially multimode plastic optical fibers and plastic optical detection elements. The ray-tracing model is employed which is complemented with mode coupling and mode-dependent attenuation obtained from measurements. It is shown that in the case of relatively short optical fibers such as used in sensors, the characteristics of particular light source, evolution of light distribution along the optical fibers, and finite non-homogeneity of plastic material have a significant effect on sensor characteristics.

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2008 12th International Conference on Mathematical Methods in Electromagnetic Theory

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