The Refractive Index Of Photonic Crystal Fibers As A Function Of Some Parameters And Temperature

Abstract

Photonic crystal fibers in the late period occupied a wide range of studies and research because of the ease of dealing with them in terms of design and installation, as there is a group of parameters used in them that can affect the refractive index of the pulse propagation through it, including the diameter of the air holes, the distance between the air holes and their number, as this study showed in addition to the aforementioned parameters The effect of temperature on the refractive index was also studied. It has been observed that with an increase in the diameter of the air holes, the refractive index increases and, conversely, the increase in the distance between them leads to a decrease in the refractive index. As for the number of air holes, it has no clear effect. As for the temperature, which is proportional to the frequency and intensity, this increase in temperature leads to an increase in the refractive index of the pulse passing through the photonic crystal fiber. Changing the temperature of the photonic crystal fiber is an interesting for dynamics fine refractive index tuning in active refractive index shift compensation system.  this paper  present a numerical analysis on the effect of photonic crystal fiber temperature on refractive index and modal features. the research depend on regular hexagonal crystal lattice fibers with specific geometric parameters using finite element method.