Design of Photonic Crystal Fiber with Highly Birefringence
Photonic crystal fiber (PCF) is also known as micro structured or holey fiber that uses Photonic crystal, which is formed using a periodic array of microscopic air holes that run along the entire fiber length. Contrary to normal fiber optics, PCFs use total internal reflection or light confinement in hollow core methods to propagate light. Light propagation in PCFs is far superior to standard fiber, which uses constant lower refractive index cladding. In order to transmit the data in large amount this PCF design with increased birefringence is proposed.
In this work, a PCF with five ring of air-holes in which the centre row in enlarged in size is proposed to obtain a fiber with high birefringent values. By solving the size is proposed to obtain a fiber with high birefringent values. By solving the fiber for various input wavelengths and air hole dimensions a high birefringence value of 3.325 is obtained for 1.55μm wavelength and 2.13 for 1.3μm wavelength. Furthermore, in this work the effects of air-hole size in effective index and birefringence value is studied. The outcome of these variations in some of the parameters of PCF is observed and the final results have been brought out. The result has been found to be successful in attaining the intended high birefringence.
