基于液晶填充的光子晶体光纤电光特性与传感应用研究

发布时间：2018-01-13 06:22

本文关键词：基于液晶填充的光子晶体光纤电光特性与传感应用研究　出处：《深圳大学》2017年硕士论文　论文类型：学位论文

【摘要】：光子晶体光纤(photonic crystal fiber,PCF)是新一代基于光子晶体技术进而发展起来的光纤。这类光纤具有很多优点,如:低损耗特性、无截止单模特性、灵活的色散特性、极强的双折射效应、可控的非线性以及可进行微结构设计改造等,随着光纤光子晶体光纤的理论日趋成熟,工艺制造日益完善,光子晶体光纤传感器的应用研究也逐渐成为热点。本论文研究的侧重点是空气孔填充有液晶的光子晶体光纤,在传感领域的技术探讨。通过对液晶材料的特性分析,可知其有折射率随电场,温度变化而变化的特性。并结合双波导耦合模原理,对液晶填充后形成的光波导与光纤纤芯这种双波导模型,进行分析,发现其发生相位匹配的规律。并探讨检测的方法和其优缺点。实验主要集中在液晶填充的工艺方法的研究和光纤传感器对外加电场、温度感应效果,并提出利用飞秒激光器进行工艺制备的全新高效方案,为光子晶体光纤传感器的制造工艺发展进行探索。同时对光子晶体光纤传感器在液晶填充物方面的特性及优势,进行了相关的研究,为光子晶体光纤传感器在相关领域的发展做出微薄贡献。
[Abstract]:Photonic crystal fiber (photonic crystal fiber, PCF) is a new generation of optical fiber based on photonic crystal technology and development. This kind of fiber has many advantages, such as low loss characteristics, characteristics of endless single mode, the dispersion characteristics of flexible, strong birefringence, controllable nonlinear and micro structure design transformation with the development of optical fiber, photonic crystal fiber theory matures, manufacturing process improvement, application research of photonic crystal fiber sensor has been a hot issue. This paper focuses on air hole photonic crystal fiber is filled with liquid crystal, to explore in the field of sensing technology. Through the analysis of the material characteristics of liquid crystal, the refraction the rate varies with the electric field, the characteristics of temperature change. Combined with the dual waveguide coupled mode principle, on the formation of liquid crystal filled waveguide and fiber core of the double waveguide model Analysis found that the phase matching rules. And to explore the detection methods and their advantages and disadvantages. The experiment mainly process in liquid crystal filling research and optical fiber sensor external electric field, temperature effect, and puts forward the new preparation process scheme of femtosecond laser, photonic crystal fiber manufacturing process development the sensor was explored. The characteristics and advantages of photonic crystal fiber sensor in liquid crystal filling area, carried out relevant research, and make contributions to the development of micro thin photonic crystal fiber sensor in the related field.

【学位授予单位】：深圳大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN253

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