首页|Design and analysis of an all-optical NAND logic gate using a photonic crystal semiconductor optical amplifier based on the Mach-Zehnder interferometer structure

Design and analysis of an all-optical NAND logic gate using a photonic crystal semiconductor optical amplifier based on the Mach-Zehnder interferometer structure

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  • NSTL
  • Elsevier
In this study, a high-speed all-optical NAND logic gate (AO-NAND-LG) was designed and numerically simulated. The simulation was performed using the photonic crystal-semiconductor optical amplifier (PC-SOA) structure based on the Mach-Zehnder interferometer and nonlinear cross-phase modulation mechanism. The input optical pulse sequence used in the design was the return-to-zero type. Moreover, two PC-SOAs were utilized in the design of the NAND-LG. The rate and propagation equations were solved using the finite difference method. The optimal mode was achieved for NAND-LG with an energy value of 2.2 fJ for input pulse trains A and B, and an injection current of 1 mA at a bit rate of 80 Gbps. Furthermore, the impacts of the pattern effect, conversion efficiency, extinction ratio, and gain recovery on the design of the AO-NAND-LG were analyzed for the first time in simulations to enhance the performance and efficiency of the PC-SOA. Furthermore, the results demonstrated that the PC-SOA exhibited better logical performance than the ordinary SOA, and it is a suitable candidate for integrated optical circuits because it is much shorter than the SOA.

Photonic crystal semiconductor optical amplifierMach-Zehnder interferometerAll-optical NAND logic gatePattern effectConversion efficiencyExtinction ratioSELF-PHASE MODULATIONSLOW LIGHT2-PHOTON ABSORPTIONWAVE-GUIDEXOR GATEPERFORMANCEOPTIMIZATIONPULSE

Heydarian, Khosro、Nosratpour, Arez、Razaghi, Mohammad

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Islamic Azad Univ

Univ Kurdistan

2022

10.1016/j.photonics.2022.100992

Photonics and Nanostructures

Photonics and Nanostructures

ISSN：1569-4410
年,卷(期)：2022.49
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