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A novel scheme for an all-optical clocked D flip-flop, with very low complexity, is proposed and numerically demonstrated. This new flip-flop configuration is based on a semiconductor optical amplifier — Mach–Zehnder interferometer (SOA-MZI), with a feedback loop, and presents two stable states determined by the phase shift between the two MZI arms.
All-optical flip-flops are key elements in photonics switching techniques, which justify the continuous interest to develop new solutions for high-speed and low-power one-bit memories. In this paper, a novel scheme for all-optical clocked D flip-flop based on a single Mach-Zehnder interferometer, with semiconductor optical amplifiers in both arms (SOA-MZI), is numerically demonstrated. The proposed...
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