微结构光纤回音壁模式机理及应用的研究

项目名称： 微结构光纤回音壁模式机理及应用的研究

项目编号： No.11274182

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 张昊

作者单位： 南开大学

项目金额： 82万元

中文摘要： 微结构光纤具有二维周期性折射率分布，与传统单模光纤相比其结构设计灵活、具有独特的传导机制和色散特性，同时微空气孔的存在又为功能性材料的填充提供了条件，为相关研究开辟了更为广阔的空间及应用前景。本项目中我们提出了在一种创新性构想，分别以微结构光纤作为传导光纤和回音壁模式（WGM: Whispering Gallery Mode）光纤，对微结构光纤WGM系统中WGM的传导机制及其模式耦合机理进行深入的理论和实验研究，进而揭示光子在倏逝场耦合及WGM激发过程中的运动及其相互作用的普适物理规律。在掌握相关规律和分析方法的基础上，还将对基于微结构光纤的WGM器件进行研究。通过填充功能材料，进一步调控WGM及其模式耦合特性。通过本项目的研究，我们将创建出能够解释微结构光纤WGM系统中WGM传导及其模式耦合相互作用过程中基本物理现象和机制的普适理论，进而研制出一系列新颖的可调谐WGM器件。

中文关键词： 微结构光纤；回音壁模式；光纤光栅；模式耦合；功能器件

英文摘要： Owing to the introduction of two-dimensional refractive index distribution over the cross section of microstructured optical fibers (MOFs), compared with conventional single-mode fibers, they have unique guiding mechanism and dispersion characteristics, and meanwhile the presence of air holes in MOFs allows for the infiltration of functional materials, which opens up broad research space and potential applications for related studies. In this project, we have presented an original thought to make an insight investigation on the guiding mechanism and mode coupling characteristics of the whispering gallery modes (WGM) for MOF-based WGM systems that respectively employ MOFs as the delivery fiber or WGM fiber, and moreover based on the mastery of related regulations and analysis approaches, we will investigate the MOF-based WGM devices as well. Through our research in this project, we will establish the universal principle to explain the fundamental physical phenomena and mechanisms for the WGM guiding and mode coupling procedure in MOF-based WGM systems, and furthermore a series of novel tunable WGM devices would be developed. Therefore, there exists a large research space for our proposal, which is also important from either a theoretical or application perspective.

英文关键词： microstructured optical fiber；whispering gallery mode；fiber grating；mode coupling；functional device