Optical multi-context scrubbing operation on a redundant system.
Optical multi-context scrubbing operation on a redundant system.
复制标题
冗余系统上的光学多上下文清理操作。
DOI：
10.1364/oe.500666
复制
发表时间：
2023
期刊：
影响因子：
3.8
通讯作者：
Nobuya Watanabe
中科院分区：
文献类型：
--
作者：
Kakeru Ando;Minoru Watanabe;Nobuya Watanabe
本文提出了一种世界上第一个在冗余系统上的光多上下文擦除操作方案，该系统可以在连续电路或触发器突然发生永久性故障或辐射导致的故障后，保持顺序电路的状态和对辐射硬化光可重构门阵列的连续操作不中断。到目前为止，高速光擦洗操作已经在辐射硬化光可重构门阵列上进行了演示。此外，基于高速光学洗涤操作的多上下文洗涤操作已经被证明。尽管多上下文洗涤操作的优点是它可以同时处理由辐射引起的软错误和永久故障，但传统的贡献从未提出如何在触发器发生永久故障后保持顺序电路的状态。因此，在传统的多上下文清洗操作中，每次在可编程门阵列上发生永久故障时，必须从初始状态重新启动所有操作。因此，传统的多上下文清洗操作不能应用于实时系统。在一种抗辐射光可重构门阵列上对该方法进行了实验验证。
This paper presents a proposal of the world-first optical multi-context scrubbing operation on a redundant system that can maintain the state of a sequential circuit and the operation continuously without any interruption on a radiation-hardened optically reconfigurable gate array even after a permanent failure suddenly happens on the sequential circuit or a flip-flop by radiation. Up to now, a high-speed optical scrubbing operation has been demonstrated on a radiation-hardened optically reconfigurable gate array. In addition, a multi-context scrubbing operation based on the high-speed optical scrubbing operation has already been demonstrated. Although the multi-context scrubbing operation presents the benefit that it can treat both soft-errors and permanent failures caused by radiation simultaneously, the conventional contributions have never presented how to maintain the state of a sequential circuit after a permanent failure occurs on flip-flops. Therefore, in the conventional multi-context scrubbing operation, all the operations must be restarted from the initial condition each time a permanent failure occurs on a programmable gate array. As a result, conventional multi-context scrubbing operations could not be applied for real-time systems. The proposed optical multi-context scrubbing method that can solve the issue has been experimentally evaluated on a radiation-hardened optically reconfigurable gate array.