Silicon-based electro-optic logic AND/NAND gate
An electro-optical and logic technology, applied in the direction of logic circuits using optoelectronic devices, logic circuits using specific components, optics, etc., can solve problems such as low extinction, prone to burrs, and small manufacturing tolerances.
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Embodiment 1
[0017] Embodiment one: if figure 1As shown, a silicon-based electro-optical logic AND / NAND gate includes two 2×2MZI type electro-optic switches with the same structure and a 2×1MMI coupler 1. The 2×2MZI type electro-optic switch has a first input terminal, a second Input terminal, first output terminal and second output terminal, 2×1MMI coupler 1 (multimode interference coupler) has a first input terminal, second input terminal and output terminal, two 2×2MZI type electro-optical with the same structure The switches are respectively the first 2×2MZI type electro-optic switch 2 and the second 2×2MZI type electro-optic switch 3; the first output terminal of the first 2×2MZI type electro-optic switch 2 and the first The input terminal is connected, the first output terminal of the second 2×2MZI type electro-optic switch 3 is an AND logic output terminal, the second output terminal of the second 2×2MZI type electro-optic switch 3 and the first input terminal of the 2×1MMI coupler ...
Embodiment 2
[0019] Embodiment two: if figure 1 As shown, a silicon-based electro-optical logic AND / NAND gate includes two 2×2MZI type electro-optic switches with the same structure and a 2×1MMI coupler 1. The 2×2MZI type electro-optic switch has a first input terminal, a second The input terminal, the first output terminal and the second output terminal, the 2×1MMI coupler 1 has the first input terminal, the second input terminal and the output terminal, and the two 2×2MZI type electro-optical switches with the same structure are respectively the first 2× 2MZI type electro-optic switch 2 and the second 2×2MZI type electro-optic switch 3; the first output end of the first 2×2MZI type electro-optic switch 2 is connected to the first input end of the second 2×2MZI type electro-optic switch 3, and the second 2 The first output end of the × 2MZI type electro-optic switch 3 is connected to the logic output end, the second output end of the second 2 × 2MZI type electro-optic switch 3 is connecte...
Embodiment 3
[0022] Embodiment three: as figure 1 As shown, a silicon-based electro-optical logic AND / NAND gate includes two 2×2MZI type electro-optic switches with the same structure and a 2×1MMI coupler 1. The 2×2MZI type electro-optic switch has a first input terminal, a second The input terminal, the first output terminal and the second output terminal, the 2×1MMI coupler 1 has the first input terminal, the second input terminal and the output terminal, and the two 2×2MZI type electro-optical switches with the same structure are respectively the first 2× 2MZI type electro-optic switch 2 and the second 2×2MZI type electro-optic switch 3; the first output end of the first 2×2MZI type electro-optic switch 2 is connected to the first input end of the second 2×2MZI type electro-optic switch 3, and the second 2 The first output end of the × 2MZI type electro-optic switch 3 is connected to the logic output end, the second output end of the second 2 × 2MZI type electro-optic switch 3 is connec...
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