All-optical exclusive-OR-XNOR logic gate based on single micro-ring resonator

Abstract

The invention belongs to the photonic device technology field and especially relates to an all-optical exclusive-OR-XNOR logic gate based on a single micro-ring resonator. The logic gate comprises a signal generator, a continuous wave laser, a modulator, a clock pulse CLK, a single micro-ring resonator and optical oscilloscopes. The signal generator and the continuous wave laser are connected to the modulator. The modulator is connected with a first single micro-ring resonator. The first single micro-ring resonator is connected with a first clock pulse CLK. The optical oscilloscopes comprise afirst optical oscilloscope and a second optical oscilloscope, a second clock pulse CLK is connected with a second single micro-ring resonator, the first single micro-ring resonator and the second single micro-ring resonator are connected to the first optical oscilloscope, and the second single micro-ring resonator is connected with the second optical oscilloscope. The logic gate has advantages ofa simple structure, low cost, low power consumption, short switching time between a high level and a low level, and easiness in cascade connection to photon integration. The logic gate is used for realizing the exclusive-OR-XNOR logic gate.

Description

technical field [0001] The invention belongs to the technical field of photonic devices, and in particular relates to an all-optical XOR logic gate based on a single microring resonator. Background technique [0002] Optical storage devices are essential elements in future ultra-high bit rate fiber optic communication systems. In an optical packet switching network, an optical storage element stores the results of an optical processor and provides control signals to an optical switch. But to avoid data collisions, optical storage elements even need to buffer entire data packets. Ideally, data should be stored all-optical, compatible with the bandwidth of fiber optics. Pulse-mode storage has found application in various fiber optic loop devices. These devices are configured with regenerative loop or mode-locked fiber ring lasers to provide bit pattern timing stability through various pulse control techniques. Most of the above-mentioned pulse control technologies are base...

AI Technical Summary

Problems solved by technology

[0004] At present, all-optical exclusive-or logic gates and all-optical exclusive-or logic gates are independent logic gates based on semiconductor optical amplifiers. The switching time of the electric pulse circuit is long, and the all-optical exclusive-or and exclusive-or logic gates cannot be realized at the same time.

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