Long-Period Fiber Gratings Simulation Source Code

The source code for long-period fiber gratings (LPFG) provides a comprehensive simulation framework for analyzing their optical transmission properties. This implementation typically includes core algorithms such as coupled-mode theory calculations and transfer matrix methods to model light propagation through periodic grating structures. The code allows researchers to examine wavelength-dependent transmission spectra, study modal coupling effects, and analyze phase-matching conditions. Key functions enable parameter adjustment of grating period, length, and modulation depth to observe their impact on transmission efficiency and resonance wavelengths. By utilizing this MATLAB-based codebase, engineers can perform design optimization through iterative parameter sweeping and sensitivity analysis. The implementation also supports visualization of spectral responses and export of simulation data for further analysis in telecommunications and sensing applications, facilitating performance improvement of LPFG devices through computational modeling.