Line defects on As2Se3-Chalcogenide photonic crystals for the design of all-optical power splitters and digital logic gates

2017 ◽  
Vol 110 ◽  
pp. 133-138 ◽  
Author(s):  
Hamed Saghaei ◽  
Abdulhamid Zahedi ◽  
Rouhollah Karimzadeh ◽  
Fariborz Parandin
Keyword(s):  
Photonic Crystals ◽  
Optical Power ◽  
Logic Gates ◽  
Digital Logic ◽  
All Optical ◽  
Power Splitters ◽  
Line Defects

Frequency Encoded All Optical Tri-state Logic Gates NOT and NAND Using Semiconductor Optical Amplifier Based Interferometric Switches

2020 ◽  
Vol 10 (4) ◽  
pp. 369-380
Author(s):  
K. Maji ◽  
K. Mukherjee ◽  
A. Raja
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Extinction Ratio ◽  
Optical Power ◽  
Logic Gates ◽  
Optical Amplifier ◽  
All Optical ◽  
State Frequency ◽  
Spontaneous Noise ◽  
First Time ◽  
Practical Feasibility

All optical tri-state frequency encoded logic gates NOT and NAND are proposed and numerically investigated using TOAD based interferometric switch for the first time to the best of our knowledge. The optical power spectrum, extinction ratio, contrast ration, and amplified spontaneous noise are calculated to analyze and confirm practical feasibility of the gates. The proposed device works for low switching energy and has high contrast and extinction ratio as indicated in this work.

All-Optical Digital Logic Gates Using Single-Mode Fabry–PÉrot Laser Diode

2009 ◽  
Vol 21 (19) ◽  
pp. 1468-1470 ◽  
Author(s):  
M.R. Uddin ◽  
J.S. Lim ◽  
Y.D. Jeong ◽  
Y.H. Won
Keyword(s):  
Laser Diode ◽  
Logic Gates ◽  
Single Mode ◽  
Digital Logic ◽  
Fabry Perot ◽  
All Optical

All-optical Digital Logic Gates using Bistable Semiconductor Ring Lasers

2009 ◽  
Vol 30 (4) ◽  
Author(s):  
Bei Li ◽  
Muhammad Irfan Memon ◽  
Gabor Mezosi ◽  
Zhuoran Wang ◽  
Marc Sorel ◽  
...  
Keyword(s):  
Logic Gates ◽  
Digital Logic ◽  
Ring Lasers ◽  
All Optical ◽  
Semiconductor Ring Lasers

All optical digital logic gates library

2012 ◽  
Vol 41 (3) ◽  
pp. 142-147 ◽  
Author(s):  
Azeemuddin Syed ◽  
G. V. Chaitanya ◽  
M. R. Sayeh
Keyword(s):  
Logic Gates ◽  
Digital Logic ◽  
All Optical

scholarly journals Design and Simulation of Linear All-Optical Comparator Based on Square-Lattice Photonic Crystals

2021 ◽  
Author(s):  
Fariborz Parandin ◽  
Reza Kamarian ◽  
Mohamadreza Jomour
Keyword(s):  
Photonic Crystals ◽  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
Optical Power ◽  
Logic Circuits ◽  
Logic Circuit ◽  
Square Lattice ◽  
Refractive Indices ◽  
Long Distance ◽  
All Optical

Abstract An optical comparator is an important logic circuit used in digital designs. Photonic crystals are among the platforms for implementing different kinds of gates and logic circuits. Photonic crystals are structures with alternating refractive indices. In digital optics, logical values “0” and “1” are defined based on the level of optical power. In this paper, an optical comparator based on square-lattice photonic crystals is designed and simulated. In the design of this comparator, a small-sized structure is used. The simulation results show that in the proposed comparator, there is a long distance between logical values ​​“0” and “1”. Due to the small size of this comparator and the adequate distance between logical values ​​“0” and “1”, this structure suits photonic integrated circuits with high accuracy.

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