Recent progress of high-speed all-optical logic gates based on dual semiconductor optical amplifiers (SOAs) has been reviewed in this article. These schemes include using quantum-dot semiconductor optical amplifier (QD-SOA) and two-photon absorption (TPA). Numerical simulation method was presented by solving the rate equations of gain dynamics in the SOA. Performance of all-optical logic operation is discussed by calculating the quality factor and plotting the eye diagram. Results show that the dual SOA scheme is a promising method for the realization of high-speed all-optical logic systems in the future.

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eye dual soa scheme numerical simulation method twophoton absorption quantumdot semiconductor optical amplifier highspeed alloptical logic systems rate equations of gain dynamics quality factor

Xiang Zhang,Sunil Thapa,Niloy Dutta,.All-optical XOR gates based on dual semiconductor optical amplifiers. 6 (1),.

Xiang Zhang,Sunil Thapa,Niloy Dutta,"All-optical XOR gates based on dual semiconductor optical amplifiers" 6

Xiang Zhang,Sunil Thapa,Niloy Dutta,"All-optical XOR gates based on dual semiconductor optical amplifiers"