Geometric definition of the V-parameter in photonic crystal fibers.
Geometric definition of the V-parameter in photonic crystal fibers.
复制标题
DOI：
10.1364/ol.39.000892
复制
发表时间：
2014-02
期刊：
影响因子：
3.6
通讯作者：
Xianfeng Bao;Xiao-Jun Wang;H. Su;X. Shu
中科院分区：
文献类型：
--
作者：
Xianfeng Bao;Xiao-Jun Wang;H. Su;X. Shu
提出了光子晶体光纤中V参数的一般几何定义。我们认为，在正方形晶格和三角形晶格的光子晶体光纤的基本模式场可以接近的基本模式在一维平面波导的某些适当的组件。这一观察结果提出了有效纤芯半径的几何定义和各种PCF中V≤π/2的单模区。数值结果表明，该建议是有效的，所有的一个棒，七个棒，19个棒，和37个棒芯三角形晶格光子晶体光纤和一个棒，九个棒，和25个棒芯正方形晶格光子晶体光纤。
We propose a general geometric definition of the V-parameter in photonic crystal fibers (PCF). We argue that the fundamental modal field in both square-lattice and triangular-lattice PCFs can be approached by certain proper assemblies of the fundamental mode in a one-dimensional planar waveguide. This observation suggests a geometric definition of the effective core radius and the single-mode regime of V≤π/2 in various PCFs. The numerical results imply that the suggestion is valid for all of the one-rod, seven-rod, 19-rod, and 37-rod core triangular-lattice PCFs and the one-rod, nine-rod, and 25-rod core square-lattice PCFs.