First, the relation between the dispersion of the fiber and the propagationconstant and equivalent refractive index is presented.
文章先给出了光纤色散与光纤传播常数及等效折射率的关系。
2
The normalized propagationconstant, which determines the number of the modes and mode cutoff is obtained for a PCF: with a certain structure parameters.
对于给定结构的PCF，计算得到了决定模式数量及模式截止的归一化传播常数。
3
The propagationconstant increases with decreasing slab thickness for the first-order oscillating mode, which is different from that in traditional metal-cladding waveguides.