Algorithms and MATLAB Code for Simulating Fiber Bragg Grating Characteristics

This article provides a comprehensive guide on simulating fiber Bragg grating characteristics using MATLAB, accompanied by detailed code implementation. Starting from the physical properties of Bragg gratings, we examine various grating parameters and demonstrate how to adjust these parameters to achieve different optical effects. The discussion includes common grating simulation algorithms such as the transfer matrix method and coupled-mode theory, with corresponding MATLAB code examples that illustrate practical implementation approaches. Key functions like grating reflectivity calculation and phase matching algorithms are explained with code snippets. Additionally, we explore performance optimization techniques for fiber Bragg gratings and practical applications of grating technology in real-world problem-solving. Through this tutorial, readers will gain deeper understanding of fiber grating characteristics and simulation methods, enabling effective application of grating technology in practical scenarios.