光子晶体光纤熔接过程中的空气孔力学特性

Mechanics Characteristic of Air-Hole in Fusion Splicing Process for Photonic Crystal Fiber

在光子晶体光纤(PCFs)的熔接过程中,熔接能量和加热时间的控制是避免空气孔塌陷的关键所在。应用经典力学理论,提出了一种光子晶体光纤熔接过程中力学特性的数学模型,对熔接过程中光子晶体光纤空气孔的畸变情况及畸变对光纤模场分布变化引起的熔接损耗进行了分析。分析结果表明,通过控制熔接能量和熔接时间可以控制光子晶体光纤空气孔的畸变情况。根据理论分析结果,进行熔接实验,分析空气孔畸变引起的损耗情况。实验结果与理论值有很好的一致性。

The control of fusion splicing energy and heating time is a key to avoid air-hole shrinkage in fusion splicing process for photonic crystal fibers （PCFs）. A mathematic model of mechanics characteristic in fusion splicing process for PCFs is developed from classical mechanics theory. Furthermore,the distortion of air-hole and fusion splicing loss are analyzed. Experiments and analysis show that distortion of air-hole may be controlled by adjusting fusion splicing energy and heating time. According to theory analysis results,fusion splicing experiment is carried out. The experiment result shows a good consistency with the analyses result.