Explore MATLAB source code curated for "传播常数" with clean implementations, documentation, and examples.
Calculate mode field distributions and propagation constants for optical fibers by inputting the mode order to obtain various mode patterns. Run main.py directly, modify parameters to handle up to 5-layer fiber structures. Implementation includes: eigenvalue problem solving for wave equations, boundary condition matching algorithms, and Bessel function-based field calculations for cylindrical waveguide geometries.
Compute optical fiber mode field distribution and propagation constants by inputting mode orders to obtain field distributions for various modes. Running main.py allows parameter modification to support calculations for up to 5-layer fiber structures. The implementation uses numerical methods like finite difference or finite element analysis to solve waveguide eigenvalue equations.
This computational program utilizes electromagnetic field source excitation techniques to analyze propagation characteristics - including propagation constants, confinement losses, and mode field distributions - in various photonic crystal waveguides such as photonic crystal fibers, metallic waveguides, and surface plasmon waveguides. The implementation typically involves solving Maxwell's equations using numerical methods like FDTD or FEM with dipole source excitation and eigenvalue solvers for mode analysis.
Implementing Newton's method for numerically computing optical fiber propagation constants enables the plotting of dispersion curves through the relationship between propagation constants and dispersion, providing key insights into fiber optic characteristics.