Ultrafast all-optical logic OR gate based on two-photon absorption with a semiconductor optical amplifier-assisted delayed interferometer

2016 ◽  
Vol 68 (2) ◽  
pp. 201-205 ◽  
Author(s):  
Amer Kotb
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
Photon Absorption ◽  
Optical Logic ◽  
Two Photon Absorption ◽  
Two Photon ◽  
All Optical ◽  
Delayed Interferometer ◽  
Or Gate

Demonstration of all-optical logic OR gate using semiconductor optical amplifier-delayed interferometer

2004 ◽  
Vol 242 (4-6) ◽  
pp. 479-485 ◽  
Author(s):  
H. Dong ◽  
Q. Wang ◽  
G. Zhu ◽  
J. Jaques ◽  
A.B. Piccirilli ◽  
...  
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
Optical Logic ◽  
All Optical ◽  
Delayed Interferometer ◽  
Or Gate

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 Continuous-wave two-photon absorption in a Watt-class semiconductor optical amplifier

2008 ◽  
Vol 16 (16) ◽  
pp. 12387 ◽  
Author(s):  
Paul W. Juodawlkis ◽  
Jason J. Plant ◽  
Joseph P. Donnelly ◽  
Ali Motamedi ◽  
Erich P. Ippen
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Continuous Wave ◽  
Optical Amplifier ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

scholarly journals Performance of All-Optical XNOR Gate Based on Two-Photon Absorption in Semiconductor Optical Amplifiers

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Amer Kotb
Keyword(s):  
Optical Amplifiers ◽  
Input Pulse ◽  
Semiconductor Optical Amplifiers ◽  
Photon Absorption ◽  
Optical Logic ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Xnor Gate ◽  
All Optical ◽  
The Impact

All-optical logic XNOR gate is realized by a series combination of XOR and INVERT gates. This Boolean function is realized by using Mach-Zehnder interferometers (MZIs) and exploiting the nonlinear effect of two-photon absorption (TPA) in semiconductor optical amplifiers (SOAs). The employed model takes into account the impact of amplified spontaneous emission (ASE), input pulse energy, pulsewidth, SOAs carrier lifetime, and linewidth enhancement factor (α-factor) on the gate’s output quality factor (Q-factor). The outcome of this study shows that the all-optical XNOR gate is indeed feasible with the proposed scheme at 250 Gb/s with both logical correctness and acceptable quality.

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