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All optical NOR gate based on cross structures in 2D photonic crystal using logic NOT and OR gate
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Publication in Journal of Optical Technology
Deeksha Rani, Rajinder Singh Kaler, Balveer Painam All optical NOR gate based on cross structures in 2D photonic crystal using logic NOT and OR gate (Полностью оптические вентили ИЛИ-НЕ на основе пересекающихся структур в двумерных фотонных кристаллах, использующие логические вентили НЕ и ИЛИ) [на англ. яз.] // Оптический журнал. 2017. Т. 84. № 12. С. 72–79.
Deeksha Rani, Rajinder Singh Kaler, Balveer Painam All optical NOR gate based on cross structures in 2D photonic crystal using logic NOT and OR gate (Полностью оптические вентили ИЛИ-НЕ на основе пересекающихся структур в двумерных фотонных кристаллах, использующие логические вентили НЕ и ИЛИ) [in English] // Opticheskii Zhurnal. 2017. V. 84. № 12. P. 72–79.
Deeksha Rani, Rajinder Singh Kaler, and Balveer Painam, "All-optical NOR gate based on cross structures in 2D photonic crystal using logic NOT and OR gates," Journal of Optical Technology. 84(12), 851-857 (2017). https://doi.org/10.1364/JOT.84.000851
An optical NOR gate is presented based on two different cross waveguide structures in 2D photonic crystal. The two different cross waveguide structures are logic NOT and OR gate. The layout of logic NOT and OR gate are simulated and analysed individually using Finite Difference Time Domain method. The structure is optimized by iterative process. The contrast ratio for logic NOT gate is 11.605 dB and for OR gate is 22.113 dB. The size of NOT and OR structures are 10×10 μm. With the optimized parameters, both the gates are combined without using any external device to design the NOR gate. The operation of NOR gate is numerically demonstrated using FDTD simulation. The contrast ratio is 15.97 dB for NOR gate. Since non linear material is not used, the power consumption is less. This NOR structure has an operating bandwidth of 40 nm. Thus, it is favorable for use in optical communication system and optical signal processor.
photonic crystals, photonic crystal waveguides, photonic bandgap matials, optical logic devices
OCIS codes: 160.5298; 130.5296; 160.5293; 250.3750
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