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首页> 外文期刊>Optical and quantum electronics >Thermo-optically tunable polarization beam splitter based on selectively gold-filled dual-core photonic crystal fiber with integrated electrodes
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Thermo-optically tunable polarization beam splitter based on selectively gold-filled dual-core photonic crystal fiber with integrated electrodes

机译：基于具有集成电极的选择性镀金双核光子晶体光学热光学可调偏振束分离器

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摘要

A thermo-optically tunable polarization beam splitter (PBS) is proposed and numerically studied. The proposed structure is based on a selectively gold-filled dual-core photonic crystal fiber (DC-PCF), which has two internal electrodes for thermo-optical tuning of the operating band of the PBS. A full-vector finite element method is used to analyze the behavior of the main parameters of the proposed device, such as coupling length, coupling length ratio, propagation distance and extinction ratio. Numerical results show that with a small length of 1.890 mm, the coupling length for the two polarization states is not modified in the analyzed temperature range. In addition, the splitter exhibits a coupling length ratio of approximately 1.5 with slightly changes as the temperature increases. The proposed PBS presents a bandwidth of 9 nm, a high extinction ratio of - 83.2 dB and tuning sensitivities of - 67 and 66 pm/°C when the internal electrodes are arranged horizontally and vertically, respectively. The DC-PCF based platform with internal electrodes has remarkable advantage such as ease of implementation and high tuning sensitivity, which ensures its potential applications in compact optical systems, optical switching and sensing applications.
机译：提出了一种热光学可调偏振分束器（PBS）并在数值上进行了研究。所提出的结构基于选择性的金填充的双核光子晶体纤维（DC-PCF），其具有两个用于PBS的操作带的热光学调谐的内部电极。全矢量有限元方法用于分析所提出的装置的主要参数的行为，例如耦合长度，耦合长度，传播距离和消光比。数值结果表明，小长度为1.890mm，在分析的温度范围内不会改变两个偏振态的耦合长度。另外，分离器表现出约1.5的耦合长度比随着温度升高而略有变化。当内电极分别水平和垂直排列时，所提出的PBS具有9nm的带宽，高消光比率为-83.2dB和67和66μm/°C的调谐敏感性。具有内部电极的DC-PCF的平台具有显着的优势，例如易于实现和高调谐灵敏度，可确保其在紧凑的光学系统中的潜在应用，光学开关和传感应用。

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