Propagation characteristics of photonic crystal fibers selectively filled with ionic liquid

IF 3.5 3区工程技术 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Nami Jishu yu Jingmi Gongcheng/Nanotechnology and Precision Engineering Pub Date : 2021-01-12 DOI:10.1063/10.0002950

Xiaoqi Liu, Yan-ge Liu, Zhi Wang

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Abstract

We present a numerical and experimental study of the propagation characteristics of photonic crystal fibers (PCFs) selectively filled with ionic liquid (IL; 1-butyl-3-methylimidazolium iodine). Three types of IL-filled PCF are investigated: one with all air holes filled, one with an IL-filled air hole in the second ring, and one with an IL-filled air hole in the third ring. The results show that the third type of IL-filled PCF is the most sensitive to temperature; the sensitivity of resonant dips between the LP01 and LP21 modes is ∼−2.9 nm/°C. Moreover, the intensity of the resonant dips changes with the polarization angle of the light source; the sensitivity is ∼−0.79 dB per unit polarization angle. Based on this property, IL-filled PCFs with different utilities can be realized by changing the filling position flexibly. Consequently, IL-filled PCFs can be used under flexible conditions and controllable temperatures to create a compact polarization-angle sensor.

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离子液体选择性填充光子晶体光纤的传输特性

我们对离子液体（IL；1-丁基-3-甲基咪唑鎓碘）选择性填充的光子晶体光纤（PCFs）的传播特性进行了数值和实验研究。研究了三种类型的IL填充PCF：一种是所有气孔都填充的PCF，一种是第二环中的IL填充气孔，另一种是在第三环中的IL充气孔。结果表明，第三种类型的IL填充PCF对温度最敏感；LP01和LP21模式之间谐振凹陷的灵敏度为～−2.9 nm/°C。此外，谐振凹陷的强度随着光源的偏振角而变化；灵敏度为-0.79 dB/单位偏振角。基于这一特性，可以通过灵活地改变填充位置来实现具有不同效用的IL填充PCF。因此，IL填充的PCF可以在灵活的条件和可控的温度下使用，以创建紧凑的偏振角传感器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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