Abstract
We numerically studied the existence of discrete cavity solitons in a two-dimensional array of coupled optical cavities with Kerr nonlinearity influenced by a local Gaussian defect. Effect of the defect on soliton on/off switching by injecting a writing/erasing external beam is also discussed. The interaction of two adjacent solitons, mediated by a defect is considered and effect of the positive and negative defect on the independency interval is determined. Finally all-optical NOR and NAND logic gates are proposed which are tunable by well-adjusting the defect height.
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Kheradmand, R., Aghdami, K. & Khiaban, B. Tunable all-optical gates in 2D discrete cavity solitons with local defect. Eur. Phys. J. D 69, 274 (2015). https://doi.org/10.1140/epjd/e2015-60373-3
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DOI: https://doi.org/10.1140/epjd/e2015-60373-3