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Thermo-optical modeling of polymer fiber Bragg grating illuminated by light emitting diode

机译:发光二极管照明的聚合物纤维布拉格光栅的热光建模

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摘要

The development of a thermo-optical model of an illuminated polymer fiber Bragg grating (PFBG), combining use of the modified coupled-mode theory with thermal conduction theory and the modified transfer matrix method (TMM), is presented. This model is applied to the prediction of the thermo-optical behavior of an intrinsically heated and passively cooled PMMA fiber Bragg grating illuminated with a LED light source and operating over a range of ambient temperatures. Parametric influences on the thermo-optic characteristics and the predictive accuracy of several simplifications in the Bragg grating relations are also explored.
机译:结合改进的耦合模理论和热传导理论以及改进的传递矩阵法(TMM),提出了照明聚合物纤维布拉格光栅(PFBG)的热光学模型的开发方法。该模型用于预测固有发光和被动冷却的PMMA光纤布拉格光栅的热光性能,该光栅由LED光源照射并在一定范围的环境温度下工作。还探讨了参数对热光特性和布拉格光栅关系中几种简化形式的预测精度的影响。

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