Imaging Properties of Multimode Photonic Crystal Waveguides and Waveguide Arrays
Résumé
Light propagation in multimode photonic crystal waveguides and in arrays of single-mode photonic crystal waveguides is analyzed. The dispersion relations of the modes travelling along these devices explain the numerically observed formation of single and multiple copies of the input beam. As the analogous devices constructed in standard planar geometry, the proposed photonic crystal devices can be employed as filters and demultiplexers. The use of photonic crystal structures, where the light is truly confined by the stop-band, adds the valuable benefit of a dramatic reduction of the overall geometrical dimensions.
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