Optical Parallel Array Logic Network Information Processing System

本研究旨在开发一种基于光学阵列逻辑网络计算（optical array logic network computing, OAL-NC）并行计算架构的光电并行计算系统，将光互连与光并行计算技术有效地结合在一起。得到的结果如下：1。从加工特性的角度研究和评价了OAL-NC体系结构的特点。该架构的有效性已被证实适用于需要局部和全局操作的一系列算法，如遗传算法。作为OAL-NC体系结构的实现方法，研究了大规模集成电路（LSI）、可编程逻辑器件（PLD）和多过程实施体（MPE）的实现方法。其中，MPE实现具有功能高、易于开发、系统均衡性好等优点。作为一种实验性的OAL-NC系统，构建了一个16 × 16加工单元的mpe实现系统。在系统中，使用16个Transputers (Inmos T425)，每个Transputers模拟16个处理元件的功能作为软件进程。为了实现电子处理器和光处理器之间的并行互连，我们制作了一组发光二极管和一组光电二极管。作为光处理器，设计了一种基于多重阴影投射的光离散相关器。对于现有的设备，已经实现了强度均匀性和良好的校正畸变。为实验系统设计了命令集和消息协议。通过对图像数据的编码和显示，验证了系统的基本操作。

This research aims to develop an optoelectronic parallel computing system based on a parallel computing architecture called OAL-NC (optical array logic network computing) in which optical interconnection and optical parallel computing technique are effectively combined. The obtained results are as follows :1.Features of the OAL-NC architecture has been studied and evaluated in terms of processing characteristics. Effectiveness of the architecture has been confirmed for a range of algorithms that require both local and global operations such as the genetic algorithm.2.As implementation methods for the OAL-NC architecture, LSI (large scale integration), PLD (programmable logic device), and MPE (multiple process embodiment) implementations were studied. Among them, the MPE implementation has advantages in high functionality, ease of development, and well system balancing.3.As an experimental OAL-NC system, an MPE-implemented system with 16 x 16 processing elements has been constructed. In the system, 16 Transputers (Inmos T425) are used each of which emulates functions of 16 processing elements as software processes. An array of light-emitting-diodes and an array of photo-diodes have been fabricated to achieve parallel interconnection between electronic and optical processors.4.As the optical processor, an optical discrete correlator has been designed based on multiple shadow-casting. For available devices, intensity uniformity and well-corrected distortion have been achieved.5.A command set and message protocols are designed for the experimental system. By encoding and display of image data, fundamental operations of the system have been verified.