中文摘要：

分析双空芯光子晶体光纤在填充高温度系数折射率敏感介质后的温度特性．应用全矢量有限元法研究温度对其模场分布、等效折射率、耦合长度及限制损耗的影响．结果表明，耦合长度随温度升高递减，限制损耗随温度升高递增．当结构一定时，短波长条件下，双空芯光子晶体光纤具有更好的温度敏感特性．

英文摘要：

A hollow dual-core photonic crystal fiber filled with large thermo-optic coefficient liquid was analyzed.The effective refractive index, coupling length and confinement loss were investigated by the full-vector finite element method with a perfectly matched layer. Theoretical calculations and results show that the coupling length reduces linearly whenever the temperature increases, but confinement loss increases with temperature. Photonic crystal fiber filled with liquid becomes more sensitive to temperature as the wavelength reduces.