FDTD Simulation of Dispersion in Photonic Crystal Fibers

The program for simulating dispersion in photonic crystal fibers using the FDTD method represents an enhanced version of the original wang.m program, specifically modified for dispersion calculations. Photonic crystal fibers constitute a novel fiber structure whose dispersion characteristics differ significantly from traditional optical fibers. The FDTD method serves as a widely-used computational approach in optics, capable of simulating various optical phenomena including dispersion effects. The original wang.m program provides fundamental functionality for calculating fiber dispersion properties. In this improved implementation, we have incorporated advanced algorithms for more accurate calculation of photonic crystal fiber dispersion characteristics, making it suitable for practical applications. Key enhancements include optimized boundary condition handling for periodic structures and improved material dispersion modeling through additional subroutine functions. This refined program offers more reliable theoretical foundations for the design and manufacturing of photonic crystal fibers, featuring extended parameter customization options and improved convergence algorithms for stable simulation results across various fiber geometries.