论文部分内容阅读
设计了一种适用于脉冲无畸变慢光传输的带隙型光子晶体光纤。用平面波展开法分析了该带隙型光子晶体光纤的能带结构、群折射率以及群速度色散等特性。分析结果表明,通过对光子晶体光纤的内包层空气孔进行微流体填充,可以有效改善光子晶体光纤的慢光特性,并且得到了群折射率为6,带宽超过100nm的超宽带光子晶体慢光光纤,实现了宽带的平坦慢光传输。该带隙型光子晶体光纤在光纤通信、信息处理、光纤传感及光与物质相互作用中有广泛的应用前景。
A bandgap-type photonic crystal fiber suitable for pulse-free, low-distortion optical transmission is designed. The band structure, group refractive index and group velocity dispersion of the bandgap photonic crystal fiber are analyzed by plane wave expansion method. The results show that the slow-light property of photonic crystal fiber can be effectively improved by microfluid filling the inner cladding air-hole of photonic crystal fiber, and the ultra-wideband photonic crystal slow-light fiber with group index of 6 and bandwidth over 100nm , To achieve a broadband flat slow optical transmission. The bandgap photonic crystal fiber has broad application prospects in the optical fiber communication, information processing, optical fiber sensing and the interaction between light and matter.