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首页> 外文会议>Novel Optical Systems Design and Optimization VII >Full Vector Modal Analysis of Microstructured Optical Fiber Propagation Characteristics
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Full Vector Modal Analysis of Microstructured Optical Fiber Propagation Characteristics

机译：微结构光纤传播特性的全矢量模态分析

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Microstructured optical fibers (MOFs) are optical fibers having a periodic air-silica cross-section. The air holes extend along the axis of the fiber for its entire length. The core of the fiber is formed by a missing hole in the periodic structure. Remarkable properties of MOFs have recently been reported. This paper presents new work in the modeling of the propagation characteristics of MOFs using the Finite Element Method (FEM) and the Galerkin Method (GM). This efficient electromagnetic simulation package provides a vectorial description of the electromagnetic fields and of the associated effective index. This information includes accurate determination of the spectral extent of the modes, cutoff properties and mode-field distributions. We show that FEM is well adapted for describing the fields at abrupt transitions of the refractive index while GM has the advantage to accurately analyze MOFs of significant complexity using only modest computational resources. This presentation will focus on the specific techniques required to determine single mode operation, dispersion properties and effective area through careful choice of the geometrical parameters of the fibers. We demonstrate that with suitable geometrical parameters, the zero dispersion wavelength can be shifted. This tool can also provide design criteria for fabricating MOFs and a corresponding map of effective area. This approach is validated by comparison with experimental results and measurements on actual MOFs fabricated at IRCOM and at Alcatel Research and Innovation Center.
机译：微结构光纤（MOF）是具有周期性空气-二氧化硅横截面的光纤。气孔沿着光纤的轴线在其整个长度上延伸。纤维的芯由周期性结构中的缺失孔形成。近来已经报道了MOF的显着特性。本文介绍了使用有限元方法（FEM）和Galerkin方法（GM）对MOF的传播特性进行建模的新工作。这种高效的电磁仿真程序包提供了电磁场和相关有效指数的矢量描述。该信息包括对模式光谱范围，截止特性和模式场分布的准确确定。我们表明FEM非常适合描述折射率的突然转变时的场，而GM具有仅使用适度的计算资源即可准确分析具有显着复杂性的MOF的优势。本演示将集中于通过仔细选择光纤的几何参数来确定单模运行，色散特性和有效面积所需的特定技术。我们证明，通过适当的几何参数，零色散波长可以移动。该工具还可以提供制造MOF的设计标准和有效面积的对应图。通过与IRCOM和阿尔卡特研究与创新中心制造的实际MOF的实验结果和测量结果进行比较，验证了该方法的有效性。

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