15 November 2010 New configuration of photonic logic gates based on single hexagonal-lattice photonic crystal ring resonator
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Abstract
We report a new configuration of logic gates based on single hexagonal-lattice PCRR composed of cylindrical silicon rods in air. Two types of inner ring including regular hexagonal and circular are numerically discussed by using 2D finite-difference time-domain (FDTD) technique. The impact of surrounding periods and scatterers like size and relative phase at each input port was investigated. The logic '0' and '1' of hexagonal ring can be defined as less than 17% and greater than 85%, respectively, much better than early reported square-lattice results. The simulation results also proved that photonic logic gates based on this new single PCRR can really function as NOT and NOR gates, respectively. These findings make PCRRs potential applications for all-optical logic circuits and ultra-compact high density photonic integration.
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JunZhen Jiang, Junqin Wang, Xiaofu Xu, Junjun Li, Xiyao Chen, Yishen Qiu, Zexuan Qiang, "New configuration of photonic logic gates based on single hexagonal-lattice photonic crystal ring resonator", Proc. SPIE 7847, Optoelectronic Devices and Integration III, 78470T (15 November 2010); doi: 10.1117/12.868377; https://doi.org/10.1117/12.868377
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