Photonic Bandgap Properties of Photonic Crystal Fibers with the Triangular Nonair-Silica Structures

The study on the photonic crystal fibers becomes a new research field of fiber optics in recent years, and the bandgap properties of the photonic crystal fibers are the main different points different from those of the general optical fibers. This paper performs the analysis on the bandgap properties of the photonic crystal fibers with the triangular nonair-silica structures by use of the full-vector plane-wave expansion method, focusing on the effect of the dielectric materials filled in the holes on the existence of photonic bandgaps.