ABSTRACT
A photonic crystal fiber (PCF) presents a new way to guide light. The air holes in the fiber work as a cladding, but
provide much more flexibility in the design. In this work, the pl ane-wave expansion technique for generating and
analyzing photonic band structures is used. The simple 2D XY array with a hexagonal cross-sectional pattern of air
holes in a silicon fiber is analysed for calculating parameters such as mode effective index, dispersion and single
mode operation over wide wavelength range. The results of a design sample presented in this article, showing the
better result to analyze this new class of fiber. This fiber can be used for biomedical application, spectroscopy, and
super continuum generation.
Keywords: Dispersion, Photonic Band Gap (PBG) , Photonic Crystal Fiber (PCF), Single Mode