激光技术Issue(4)：455-458,4.DOI:10.7510/jgjs.issn.1001-3806.2014.04.005
正方形五芯光子晶体光纤的耦合特性分析
Analysis of coupling characteristics of square five-core photonic crystal fibers
摘要
Abstract
To study the influence of the structure parameters of a square five-core photonic crystal fiber ( PCF ) on coupling characteristics , according to the characteristics of its five super-modes, a method to calculate the coupling length of the PCF was given .The effect of the wavelength and the structure parameters on the coupling characteristics of the PCF was numerically studied in detail with the finite element method .The results show that the coupling length increases with the increase of the core-to-core distance, air-filling ratio, core refractive index and core diameter .However, the coupling length decreases with the increase of the wavelength .The results will provide the theoretical foundations for the design of directional couplers based on five-core PCFs.关键词
光纤光学/耦合长度/有限元法/耦合理论Key words
fiber optics/coupling length/finite element method/coupled-mode theory分类
信息技术与安全科学引用本文复制引用
钱燕,刘敏,杨静,马云华..正方形五芯光子晶体光纤的耦合特性分析[J].激光技术,2014,(4):455-458,4.基金项目
国家自然科学基金资助项目 （）
