Fiber Bragg Grating Simulation Programs

This collection contains several simulation programs for fiber Bragg gratings, including implementations for standard Bragg gratings and chirped grating variants. Fiber gratings are optical sensors that convert light signals in optical fibers into measurable physical quantities, widely used in industrial, medical, and aerospace applications. Bragg gratings constitute a fundamental structure achieved by incorporating Bragg mirror reflectors within optical fibers. The simulation code typically implements transfer matrix methods or coupled-mode theory to model light propagation through periodic refractive index modulations. Chirped fiber gratings are specialized optical components that modulate signals through gradually varying periodicity, employing algorithms that calculate phase matching conditions for applications in optical communications and sensing systems. The programs include numerical implementations of governing equations using MATLAB or Python, with key functions handling grating parameter definitions, propagation matrix calculations, and spectral response analysis.