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Optical Engineering

Optical logic gates based on semiconductor optical amplifier Mach–Zehnder interferometer: design and simulation
Author(s): Eman M. El-Saeed; Ahmed Abd El-Aziz; Heba A. Fayed; Moustafa H. Aly
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Paper Abstract

All-optical logic gates are designed to extend the existing design to a higher number of bits, to use the same gate in multifunctions, and to add new gate designs. This type of gate is based on semiconductor optical amplifier (SOA) nonlinearities, since the SOA can provide a strong change of the refractive index together with high gain. The SOA is used with a Mach–Zehnder interferometer (MZI) forming an SOA-MZI structure which is used to perform the logic gates XOR, NOR, OR, and XNOR. Two binary input data signals are used with different number of bits (4, 6, 8, and 16 bit) at 10 Gbps. This work includes the study of the effect of the number of bits on the received power, minimum bit error rate, and maximum Q-factor.

Paper Details

Date Published: 9 February 2016
PDF: 12 pages
Opt. Eng. 55(2) 025104 doi: 10.1117/1.OE.55.2.025104
Published in: Optical Engineering Volume 55, Issue 2
Show Author Affiliations
Eman M. El-Saeed, Arab Academy for Science, Technology & Maritime Transport (Egypt)
Ahmed Abd El-Aziz, Arab Academy for Science, Technology & Maritime Transport (Egypt)
Heba A. Fayed, Arab Academy for Science, Technology & Maritime Transport (Egypt)
Moustafa H. Aly, Arab Academy for Science, Technology & Maritime Transport (Egypt)


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