A photonic crystal (PhC) based optical component paves a path to the upcoming all-optical computer processors. All the components can be realized with the help of PhCs. In particular, optical gates have played a major part in the development of all-optical half adders which has lead to the bloom of optical computing technology. In this paper, a PhC based optical half adder is proposed and a brief analysis is carried out for the different crystal structures and lattice patterns. The efficiency of the device is analyzed by providing proper distinct space in output power between logical ‘0’ and ‘1’ states and it operates well even in the reduced input power level. The error can be minimized while identifying the logical states (logic ‘0’ and logic ‘1’), by setting a threshold limit for output power. The threshold level is fixed such that if it is greater than 0.7 µ W, it is considered as logic ‘1’, and if it is less than 0.35 µ W, then it will be taken as logic ‘0’. The...

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基于光子晶体的全光半加法器：简要分析

基于光子晶体（PhC）的光学组件为即将到来的全光学计算机处理器铺平了道路。所有组件都可以在PhC的帮助下实现。特别是，光闸在全光半加法器的发展中起了重要作用，这导致了光计算技术的蓬勃发展。本文提出了一种基于PhC的光学半加法器，并对不同的晶体结构和晶格图案进行了简要分析。通过在逻辑“ 0”和“ 1”状态之间的输出功率中提供适当的明显空间来分析设备的效率，即使在降低的输入功率水平下，它也能很好地工作。通过设置输出功率的阈值极限，可以在识别逻辑状态（逻辑“ 0”和逻辑“ 1”）时将错误降至最低。阈值电平是固定的，如果大于0.7 µW，则将其视为逻辑“ 1”；如果小于0.35 µW，则将其视为逻辑“ 0”。那个...