Title :
Ultrahigh Speed Optical Signal Processing Logic Based on an SOA-MZI
Author :
Singh, Surinder ; Lovkesh
Author_Institution :
Dept. of Electron. & Commun. Eng., Sant Longowal Inst. of Eng. & Technol., Longowal, India
Abstract :
This paper presents the simulation and design of all-optical logic gates OR, AND, XNOR, and XOR at ultrahigh speed by proposing the semiconductor optical amplifier-Mach-Zehnder interferometer (SOA-MZI) configuration. The simulations of all logic gates are obtained by SOA-MZI structure parameters at 40 and 120 Gb/s. The OR, AND, and XOR logics are implemented first time at 120 Gb/s by using single wavelength and an SOA-MZI. The XNOR logic is realized directly by the proposed SOA-MZI without any implementation with existing logics. Thus, realization of these logics at 40 and 120 Gb/s will enhance the future optical signal processing applications for super-high speed operation.
Keywords :
Mach-Zehnder interferometers; logic gates; optical logic; semiconductor optical amplifiers; AND logic; Mach-Zehnder interferometers; OR logic; SOA-MZI; XNOR logic; XOR logic; bit rate 120 Gbit/s; bit rate 40 Gbit/s; logic gates; semiconductor optical amplifiers; ultrahigh speed optical signal processing logic; Logic gates; Nonlinear optics; Optical attenuators; Optical coupling; Optical interferometry; Optical polarization; Optical signal processing; Logic gates; return to zero (RZ); semiconductor optical amplifier–Mach–Zehnder interferometer (SOA-MZI);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2011.2155623
