New Design of All-Optical Logic Universal NAND Gate Formed by NOT (A AND B) Gates Using Michelson Interferometer Based on Semiconductor Optical Amplifier

2019 ◽  
Vol 16 (7) ◽  
pp. 2712-2719
Author(s):  
Jackson Moreira Oliveira ◽  
Hudson Afonso Batista da Silva ◽  
Lelis Araujo de Oliveira ◽  
Fabio Barros de Sousa ◽  
Jorge Everaldo de Oliveira ◽  
...  
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Michelson Interferometer ◽  
Optical Amplifier ◽  
Nand Gate ◽  
Optical Logic ◽  
All Optical

All-Optical Logic Gates Based on Quantum-Dot Semiconductor Optical Amplifier

2018 ◽  
Vol 27 (01n02) ◽  
pp. 1840013 ◽  
Author(s):  
Xiang Zhang ◽  
Sunil Thapa ◽  
Niloy K. Dutta
Keyword(s):  
Quantum Dot ◽  
Semiconductor Optical Amplifier ◽  
Logic Gates ◽  
Optical Amplifier ◽  
Boolean Logic ◽  
Photon Absorption ◽  
Hole Burning ◽  
Optical Logic ◽  
Logic Operation ◽  
All Optical

We propose a scheme to realize all-optical logic operation in quantum-dot semiconductor optical amplifier (QD-SOA) based Mach-Zehnder interferometer (MZI) considering the effects of two-photon absorption (TPA). During propagation of sub-picosecond pulses in QD-SOA, TPA leads to an additional change in carrier recovery dynamics in quantum-dots. We utilize a rate equation model to take into account carrier refill through TPA and nonlinear dynamics including carrier heating and spectral hole burning in the QD-SOA. The simulation results show the TPA induced pumping in the QD-SOA can reduce the pattern effect and increase the output quality of the all-optical logic operation. With TPA, this scheme is suitable for high speed Boolean logic operation at 320 Gb/s.

scholarly journals All-Optical Logic Gates: Designs, Classification, and Comparison

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Pallavi Singh ◽  
Devendra Kr. Tripathi ◽  
Shikha Jaiswal ◽  
H. K. Dixit
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Optical Amplifiers ◽  
Semiconductor Optical Amplifiers ◽  
Logic Gates ◽  
Optical Amplifier ◽  
Current Status ◽  
Optical Logic ◽  
Optical Logic Gates ◽  
All Optical ◽  
Optical Gates

The paper reviews the current status and designs of all-optical gates. Various schemes with and without semiconductor optical amplifiers are discussed and compared. The optical gates are classified according to their design structures. It is divided into two major divisions that is, nonsemiconductor optical amplifier based gates and semiconductor optical amplifier based gates. In nonsemiconductor optical amplifier based gates, different schemes have been proposed to create non-linearity which is discussed. The semiconductor optical amplifier based gates of different design structures are discussed to show the probe pulse that is modulated in different ways to obtain results.

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