Optimization of defected-core photonic crystal fiber for salt solution sensing using finite element method and factorial analysis

In this paper, finite element method and factorial analysis were applied to build the empirical model for phase propagation constant of lightwave in defected-core photonic crystal fiber. By combing both methods, we were able to provide complete analysis of phase propagation constant as a function of fiber's structure. The empirical model was also used to optimize a salt solution sensor system using defected-core photonic crystal fiber in term of sensing resolution.