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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Simulation of all-optical NOT/OR/AND/NAND/NOR/XNOR/XOR logic gates using a single structure high contrast index nonlinear multimode interference coupler
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Simulation of all-optical NOT/OR/AND/NAND/NOR/XNOR/XOR logic gates using a single structure high contrast index nonlinear multimode interference coupler

机译:使用单个结构高对比度指数非线性多模干扰耦合器模拟全光学不/或/和/和/ NAND / NOR / NOR / XNOR / XOR逻辑门

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摘要

A compact 3 x 3 polydiacetylene crystalline multimode interference (MMI) coupler simulated using the nonlinear modal propagation method (NMPA) is proposed as a conventional single structure to fulfill the functionality of all kinds of logic gates based on the on-off keyed (OOK) format. This novel approach has potential applications in all-optical logic gates for Boolean logic signal processing devices. We consider three categories of input arrangements to investigate six logic output situations. A side-input control of the gate operations with an opposite-side output is demonstrated to produce all the binary functions. Therefore, logic gate operations are optimized via the output width, where the contrast ratio between the ON and OFF states determines the efficiency of the all-optical gates, such as contrast ratios lying from 22 dB to 12 dB on the optimized output width.
机译:使用非线性模态传播方法(NMPA)模拟的紧凑型3×3多迪亚乙烯晶体多模干涉(MMI)耦合器作为传统的单个结构,以满足基于开关的键控(OOK)的各种逻辑门功能的功能 格式。 这种新颖的方法具有布尔逻辑信号处理设备的全光学逻辑门中的潜在应用。 我们考虑三类输入安排来调查六个逻辑输出情况。 使用相反侧输出的栅极操作的侧输入控制被证明以产生所有二进制功能。 因此,通过输出宽度优化逻辑门操作,其中开关状态之间的对比度确定了所有光栅栅极的效率,例如从优化的输出宽度的22dB到12 dB的对比度比率。

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