ZHANG Xiao-jin, LIANG Long-xue, WU Xiao-suo etc. Design and Study of Whole Optical XOR Logic Gate of Two Dimensional Photonic Crystals[J]. Chinese Journal of Luminescence, 2018,39(12): 1772-1777
ZHANG Xiao-jin, LIANG Long-xue, WU Xiao-suo etc. Design and Study of Whole Optical XOR Logic Gate of Two Dimensional Photonic Crystals[J]. Chinese Journal of Luminescence, 2018,39(12): 1772-1777 DOI: 10.3788/fgxb20183912.1772.
Design and Study of Whole Optical XOR Logic Gate of Two Dimensional Photonic Crystals
Transmission characteristics of two-dimensional photonic crystals Mach-Zehnder interferometer are analyzed
then the two-dimensional photonic crystal waveguides
circular cavity and Mach-Zehnder interferometer are combined with a reasonable way. In the end
a XOR gate based on two-dimensional photonic crystals Mach-Zehnder interferometer is proposed. Plane wave expansion (PWE) is used to analyze the band structure of two-dimensional photonic crystal
and finite difference time domain(FDTD) is used to verify the steady-state distribution of optical signals in the device. The research shows that the structure can achieve XOR logical functions
with high logical contrast 7.88 dB
fast response cycle 0.388 ps and high transmission rate 7.87 Tbit/s. And the structure size is only 13 m14 m so that it is easily to integrate. The XOR logic structure based on two-dimensional photonic crystals Mach-Zehnder interferometer
makes the design of photonic crystal logic gate more diverse
and it also provides the foundation for half adder and full adder design of two-dimensional photonic crystals
which has important research significance.
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references
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