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The math analysis of propagation modes and other relevant operating parameters to waveguides and optical fibers can be found by solving the four equations of Maxwell, and also meeting effectively boundary conditions analyzed for each case according to geometry and materials they are produced with. These solutions however are quite difficult and sometimes confusing for students who use them first time. In this paper we developed and implemented an application using Matlab tool, which provides students and teachers the procedure and calculations carried out to get some parameters, such as numerical aperture, normalized cutoff frequency and actual cutoff frequency to step-index optical fibers based on refractive indices and a core radius.

Cálculo de las frecuencias de corte en fibras ópticas de índice escalonado, utilizando Matlab.