Large Mode Area Hexagonal Photonic Crystal Fiber

Abstract

In this project we deal with the Photonic crystal fiber. Here we design a model of hexagonal photonic crystal fiber which contains five air hole rings with perfectly matched absorbing layer. We use COMSOLE Multiphysics to design this model. We use finite element method of COMSOL Multiphysics to design proposed hexagonal photonic crystal fiber. Finite element methods for approximating partial differential equations that arise in science and engineering analysis find widespread application. We have changed the value of pitch which means the distance between two air holes. Our target is to design a model which have large mode area, so that we gradually change the pitch up to 18 μm and fixing the diameter on 0.5 μm. From the numerical result it is found that for the higher value of pitch we obtained large mode area.