Abstract
In the present communication, all-optical clocked J–K flip-flop is proposed and described using silicon waveguide-based optical micro-ring resonator (OMRR). We have used two optical pump signals representing the two operands (J and K) of the logical operation to modulate the OMRRs under low pump power condition. A theoretical model of the proposed J–K flip-flop and hence S–R and T flip-flop are developed using micro-ring resonator through pump–probe configuration. Numerical simulation results for clocked flip-flop circuits verifying the proposed method are given in this paper. We identified a combination of feasible OMRR radius and detuning through numerical simulation which allows analyzing the system performance of the scheme such as maximum amplitude difference between marks $$(\hbox {AD}_{1,\mathrm{{max}}})$$ , between spaces $$(\hbox {AD}_{0,\mathrm{{max}}})$$ and between marks and spaces $$(\hbox {AD}_{1/0,\mathrm{{max}}})$$ , which confirm the feasibility of the flip-flop design. A maximum buildup factor of 19.57 is achieved at an optimized coupling coefficient of 0.22.
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