Tunable all-optical gates in 2D discrete cavity solitons with local defect

被引：4
作者：
Kheradmand, Reza [1 ]
Aghdami, Keivan Mahmoud [2 ]
Khiaban, Bahareh Haddadpour [1 ,3 ]
机构：
[1] Univ Tabriz, Photon Grp, Res Inst Appl Phys & Astron, Tabriz, Iran
[2] Payame Noor Univ, Dept Phys, Tehran, Iran
[3] Univ Tabriz, Photon Grp, Tabriz, Iran
来源：
EUROPEAN PHYSICAL JOURNAL D | 2015年 / 69卷 / 12期
关键词：
LOGIC GATES;
D O I：
10.1140/epjd/e2015-60373-3
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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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页数：6
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