All optical photonic crystal encoder based on nonlinear Kerr effect with ultrahigh contrast ratio and low threshold power

Bouaouina, Mohamed Salah

doi:10.1007/s11082-023-05145-5

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…Furthermore, the performance of proposed design is also analyzed by finding out insertion loss, based on the obtained values from the simulation results. The insertion loss [31], [32], [33] is calculated by…”

Section: Performance Analysismentioning

confidence: 99%

2D FDTD Electromagnetic Simulation of an Ultracompact All Optical Logic Gate Based on 2D Photonic Crystal for Ultrafast Applications

de Almeida,

de Sousa,

Paschoal Jr.

et al. 2024

JCIS

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In this paper, the concept of photonic crystals (PhCs) is fundamental to designing and simulating an all-optical logic gate device. We proposed an all-optical switch composed of two-dimensional (2D) photonic crystal waveguides with a central photonic crystal ring resonator (PCRR). The new all-optical NAND logic gate device comprises two linear waveguides coupled to each other through a single compact PCRR. The plane wave expansion (PWE) and finite-difference time-domain (FDTD) methods are applied to simulate the properties of the system. The structure is implemented on the operational wavelength of 1700 nm on an air wafer of only 12 μm × 12 μm. Indeed, the simulation results show that the proposed all-optical NAND gate is a strong candidate for ultrafast photonic integrated circuits (PICs) for applications in optical communications, being advantageous with high transmitting power, with simple design, and without the use of optical amplifiers and nonlinear materials.

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Section: Performance Analysismentioning

confidence: 99%