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Waveguiding losses of micro-structured fibres—plane wave method revisited

机译:微结构纤维的波导损耗——平面波法再见

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摘要

We present a numerical method for the analysis of translationally invariant systems with anisotropic and dispersive electric and magnetic properties. This material model enables us to calculate the mode structure of photonic devices such as photonic crystal fibres (PCF) containing inclusions with anisotropic, conducting, magnetic, or negative index materials. The method is based on the popular plane wave (PWM) discretisation scheme applied to the generalised vectorial transmission line equations. The analysis is focused on the calculation of radiation losses. For this purpose we consider a uniaxial perfectly matched layer (UPML) termination of the otherwise periodic system. We asses the accuracy of the method and the properties of spurious modes created inside the UPML.
机译:我们提出了一种数值方法,用于分析具有各向异性和色散电和磁特性的平移不变系统。该材料模型使我们能够计算光子器件的模式结构,例如光子晶体光纤 (PCF),其中包含各向异性、导电、磁性或负折射率材料的夹杂物。该方法基于广义矢量传输线方程中常用的平面波(PWM)离散化方案。分析的重点是辐射损失的计算。为此,我们考虑了其他周期系统的单轴完美匹配层 (UPML) 端接。我们评估了该方法的准确性以及UPML内部创建的杂散模式的特性。

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