Simulating Dispersion in Photonic Crystal Fibers Using FDFD

We can simulate dispersion in photonic crystal fibers using the Finite-Difference Frequency-Domain (FDFD) method. The primary implementation consists of FDFD.m as the main simulation driver and dispersion.m specifically designed for dispersion calculations using numerical differentiation techniques. This program proves highly valuable for gaining deeper insights into photonic crystal fiber properties, particularly their dispersion characteristics. The core algorithm employs frequency-domain electromagnetic field solvers with periodic boundary conditions to model the fiber's microstructure. Through this simulation approach, we can accurately predict photonic crystal fiber behavior across different frequency ranges, which is crucial for designing and optimizing fiber structures. Understanding how to utilize this program with its matrix-based eigenvalue solvers and material parameter definitions enables better mastery of photonic crystal fiber characteristics and practical applications in optical communication systems.