All-optical logic AND and OR gates generated by dark–bright soliton conversion

Design and analysis of all-optical AND, XOR and OR gates based on SOA–MZI configuration

“…(5). Mostly the chirp is observed in the intensity converted probe signal affecting the leading and trailing edges of the pulses.…”

“…In the literature, some schemes are reported of all-optical logic gates, using nonlinear effects in optical fibers [1,2], in semiconductor devices or in waveguides [3,4]. Moreover, several efforts have been made in order to demonstrate the suitability of new structures for the realization of optical logic gates [5][6][7].…”

Performance Evaluation of the Optical AND Gate at 200 Gbps

“…Spatialsoliton interactions in optical communication spectral regions with local nonlinear Mach-Zehnder interferometer (MZI) waveguide structure through multi-input port and two nonlinear output have been realized for the all optical gates [4]. The optical OR/AND gates were as well realized with dark-bright soliton conversion within the add/drop optical filter system [5]. Further, based on the optical nonlinearities through band pass filter reconfigurable optical gate executed at 40 Gbps data rate [6].…”

All-optical logical gates based on photoinduced molecules reorientation in amorphous polymer films

“…And now, there are many optical logic gate and optical switches based on different configurations and principles. [3][4][5][6][7][8][9][10][11][12][13][14][15] To design optical gates, it is necessary to implement a nonlinear medium which modulates the signal to produce the desired results. The nonlinearity may be generated in numerous ways such as using nonlinear loop mirror, nonlinear fiber, photonic crystal, filter, waveguide, acoustic waves, or semiconductor optical amplifier (SOA).…”

“…The nonlinearity may be generated in numerous ways such as using nonlinear loop mirror, nonlinear fiber, photonic crystal, filter, waveguide, acoustic waves, or semiconductor optical amplifier (SOA). [9][10][11][12][13][14][15] However, many nonlinear mechanisms usually need high light power, and the structures of logical gates based on such nonlinearity are complicated. All-optical logical gates with simple structure and easy material process and operating in relatively low power are the attractive directions in all-optical network.…”