Simulation of Uniform Bragg Grating

This is a source code written using the Runge-Kutta method to simulate uniform Bragg gratings. The implementation employs fourth-order Runge-Kutta numerical integration to solve the coupled-mode equations that describe light propagation through periodic grating structures.

Uniform Bragg gratings are fundamental optical components commonly used in spectrometers and other optical instruments. They function by dispersing incident light according to wavelength, enabling the acquisition of spectral information across different wavelengths. These gratings consist of numerous equally-spaced parallel ridges that reflect and diffract light waves. The simulation program facilitates deeper understanding and investigation of the optical properties of uniform Bragg gratings, providing valuable support and guidance for further research in related fields. The code models key parameters including grating period, refractive index modulation, and propagation losses to accurately predict spectral response characteristics.