DESIGN OF UNIVERSAL OPTICAL LOGIC GATES USING HETEROGENEOUS SWASTIKA STRUCTURED HEXAGONAL PHOTONIC CRYSTAL RING RESONATOR

Abstract All optical logic gates are building blocks for all optical data processors. One way of designing optical logic gates is using threshold switching which can be realized by combining an optical resonator with nonlinear Kerr effect. In this paper we showed that a novel structure consisting of nonlinear photonic crystal ring resonator which can be used for realizing optical NAND/NOR and majority gates. The delay time of the proposed NAND/NOR and majority gates are 2.5 ps and 1.5 ps respectively. Finite difference time domain and plane wave expansion methods were used for simulating the proposed optical logic gates. The total footprint of the proposed structure is about 988 μm2.

Download Full-text

A new design of a photonic crystal ring resonator based on Kerr effect for all-optical logic gates

Optical and Quantum Electronics ◽

10.1007/s11082-018-1628-4 ◽

2018 ◽

Vol 50 (10) ◽

Author(s):

Sana Rebhi ◽

Monia Najjar

Keyword(s):

Photonic Crystal ◽

Kerr Effect ◽

Ring Resonator ◽

Logic Gates ◽

Optical Logic ◽

Optical Logic Gates ◽

All Optical ◽

Photonic Crystal Ring Resonator

Download Full-text

Advanced realization and characterization of directed optical logic gates using electroabsorptive quantum-well-based micro ring resonator

Optik ◽

10.1016/j.ijleo.2020.164426 ◽

2020 ◽

Vol 221 ◽

pp. 164426

Author(s):

Fayza K. A ◽

Sooraj Ravindran ◽

Kwangwook Park ◽

Kamal Alameh ◽

Aylin Bengi ◽

...

Keyword(s):

Quantum Well ◽

Ring Resonator ◽

Logic Gates ◽

Optical Logic ◽

Optical Logic Gates

Download Full-text

An Optical Half Adder Using Nonlinear Ring Resonator Based on Photonic Crystal

Journal of Optical Communications ◽

10.1515/joc-2019-0063 ◽

2019 ◽

Vol 0 (0) ◽

Author(s):

Mohsen Ebrahimi ◽

Sahel Javahernia

Keyword(s):

Photonic Crystal ◽

Time Delay ◽

Ring Resonator ◽

Optical Power ◽

Logic Gates ◽

Ring Resonators ◽

Optical Logic ◽

Nonlinear Photonic Crystal ◽

Half Adder ◽

Glass Rods

AbstractNonlinear photonic crystal ring resonators are suitable mechanisms that can be used for designing optical logic gates and digital structures. In this paper, we designed two nonlinear resonant rings by adding doped glass rods inside the photonic crystal ring resonator. An optical half adder was designed using these nonlinear photonic crystal ring resonators. We used plane wave expansion and finite difference time domain methods to simulate our optical half adder. The simulations show that when one of the input ports is ON, the normalized optical power at the S is about 90 %. The time delay in this case is 7 ps. Also when both the input ports are ON, the normalized optical power at the C is about 155 %. The time delay in this case is 8 ps.

Download Full-text