Abstract In this article, a panda-like silicon core based photonics crystal fiber was proposed and applied onto a polarization filter. Au film coating surrounding the air holes acted as a plasmonic active metal. Using the Finite element method, the quality of the proposed fiber was investigated, including confinement loss and extinction ratio. By adjusting the length of the proposed fiber, the applicable operating wavelength region could reach up to 1 μ m easily. Thus when the length increased to 6 mm, the wavelength band covered fiber communication band was also obtained. As a result, the proposed silicon core photonics crystal fiber achieved a good filtering effect in the near-infrared, even extending to mid-infrared. Moreover, the proposed fiber device can easily integrate with the existing optical fiber communication and sensing system.

中文翻译：

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基于表面等离子体共振效应的宽带硅芯光子晶体光纤偏振滤波器

摘要 本文提出了一种类似熊猫的硅芯光子晶体光纤，并将其应用于偏振滤波器。围绕气孔的金膜涂层充当等离子体活性金属。使用有限元方法，研究了所提出的纤维的质量，包括约束损失和消光比。通过调整所提出的光纤长度，适用的工作波长范围可以轻松达到 1 μm。这样当长度增加到6mm时，也得到了波长带覆盖的光纤通信带。因此，所提出的硅芯光子晶体光纤在近红外，甚至延伸到中红外都取得了良好的过滤效果。此外，所提出的光纤设备可以很容易地与现有的光纤通信和传感系统集成。