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.
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.
出处
《深圳大学学报（理工版）》
EI
CAS
北大核心
2010年第1期28-32,共5页
Journal of Shenzhen University(Science and Engineering)
基金
国家自然科学基金资助项目(60777036)
广东省自然科学基金资助项目(7009419)
关键词
光学
光纤传感器
有限元法
光子晶体光纤
耦合长度
限制损耗
optics
optical fiber sensor
finite element method
photonic crystal fiber
coupling length
confinement loss
