Photonic crystal rectangular coupled cavity zero dispersion slow optical wave guide
A photonic crystal, zero dispersion technology, applied in the direction of light guides, optics, optical components, etc., to achieve the effect of reducing the group velocity
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[0028] Such as figure 1 as shown, figure 1 The three-dimensional structure diagram of the photonic crystal zero-dispersion slow light waveguide provided for the present invention, the photonic crystal zero-dispersion slow light waveguide is composed of a substrate 1, a coupling cavity 2, and a dielectric column 3, and the excitation source 4 is located at h above the substrate.
[0029] in:
[0030] a substrate 1;
[0031] A plurality of coupling cavities 2, the coupling cavities 2 are rectangular cylinders, and the coupling cavities 2 are erected in a row on the middle part of the substrate 1, wherein the coupling cavities 2 are rectangular cavities; the rectangular coupling cavities 2 are single row along the The direction of photonic crystal single-line defect waveguide is arranged. For ordinary photonic crystal single-line defect waveguide, the mode in the forbidden band is monotonous. However, due to the existence of the rectangular coupling cavity, the mode in the phot...
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