1550nm处空芯光子晶体光纤带隙结构的研究

文章利用全矢量平面波法分析了二维三角结构空芯光子晶体光纤平面内和平面外存在的光子带隙的结构图.重点分析了课题组拉制的空芯光子晶体光纤,计算出了存在光子带隙的波长范围,发现在1550nm的光纤通讯窗口也存在光子带隙.通过理论计算这种光纤,发现随着包层的空气填充率、包层与空气孔两介质的相对折射率差的增大,带隙宽度也将随之增大.最后,说明了如何制备宽带隙的光子晶体光纤.

Research on photonic bandgap structure in hollow-core photonic crystal fibers around 1550nm

Using the full-vector plane-wave method,we analyze and calculate two dimensions triangular lat-tice photonic bandgap structure in-plane and out-of-plane wave propagation.Particularly in researching on the hollow-core photonic crystal fibers that we have fabricated and calculating the spectrum range of photonic bandgap,we notice that the fiber communication window of 1550nm is also a photonic bandgap.According to the theory calculation,we find that the photonic bandgap is increasing with the increasing air-f...