Application Aux Filtres À Base De Résonateurs
Résumé: In this work, we focused on the study of channel drop filters (CDfs) based on the lateral coupling between waveguides and photonic crystal ring resonators (PCRRs). We proposed two types of filters; the first one contains a PCRR located between two parallel waveguides. While the second one includes a PCRR introduced between two perpendicular waveguides. The properties of these filters are numerically studied using the finite difference method in the two-dimensional time domain (2D-FDTD). The improvement of the performance of these components depends on the adjustment of the geometrical parameters of the structure as well as its modification by the introduction of reflective mirrors. We then analyzed the effect of different parameters on the characteristics of these filters. This analysis made it possible to show that a photonic crystal demultiplexer, composed of several PCRRs coupled to waveguides, can be envisaged.
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