Numerical Simulations of HC-PCF Filled with Different Liquids for Sensing Applications

A numerical analysis using finite element method (FEM) are used to simulate hollow core photonic crystal fiber (HC-PCF) overfilled with various liquids (heavy water, water and pentanol). Two type of the HC-PCF are used the HC19-1550 and HC-1550. The effective mode index and the confinement loss of the fundamental mode for empty fiber and infiltrated PCF are numerically calculated. The results show that the effective mode index increases with increase of refractive index and the minimal value of confinement loss are not only decreases but also shifted to smaller wavelengths which allow as to determine the amplitude sensitivity of the fiber.