Calculation of Optical Fiber Mode Field Distribution and Propagation Constants

To calculate optical fiber mode field distributions and propagation constants, users need to input mode orders to compute field distributions for different mode types. For analyzing multi-layer fiber structures, execute main.py and modify parameters in the configuration section - the code supports up to 5-layer structures through its layered refractive index input system. Key implementation considerations include defining refractive index profiles, geometric parameters (core diameter, layer thicknesses), and material properties through structured input arrays. The algorithm typically employs numerical methods like finite-difference eigenmode solvers that discretize Maxwell's equations using Yee's grid scheme. Understanding differences between fiber modes (TE/TM/HE/EH modes) is crucial for proper interpretation of results, which are visualized through field intensity plots generated via matplotlib visualization functions. Ensure thorough preparation by validating input parameters against physical constraints (e.g., refractive index monotonicity) before execution to obtain accurate results.