Construction of Optical Array Logic Network Processor

本研究旨在基于一种称为OAL-NC(光学阵列逻辑网络计算)的并行计算体系结构来开发用于光电并行计算系统的光网络处理器。1.针对OAL-NC网络处理器的离散相关器的设计，提出了一种基于自动透镜设计和替代市售透镜的有效方法。利用该方法设计了一个由6个透镜组成的小变形光学系统。搭建了所设计的光学系统，并对其性能进行了验证。由于发光二极管发光范围较广，光功率效率仅为0.0005%，需要对系统进行重新设计。对于分立光学相关器的棱镜阵列，发展了一种利用光敏聚合物与Twyman-Green干涉仪相结合的制作技术。达到了顶角2度的精度。在OAL-NC实验系统(16×16像素系统)上对离散相关器的工作特性进行了评估。在光学阵列逻辑的背景下成功地执行了异或逻辑。为了实现光学系统的集成，利用光敏聚合物构建了分立相关模块。光学系统由直径15 mm、焦距21.8 mm的两个透镜和PRIMS阵列组成。该模块的光学分辨率为16lp/mm。

This research aims to develop an optical network processor for an optoelectronic parallel computing system based on a parallel computing architecture called OAL-NC (optical array logic network computing). The obtained results are as follows :1. For design of the discrete correlator for the OAL-NC network processor, an effective method based on automatic-lens design and substitution of commercially available lenses has been developed. With the method, a small-distortion optical system has been designed consisting of 6 lenses.2. The designed optical system has been constructed and its performance were verified. Due to broad emission of the light emitting diodes, optical power efficiency was only 0.0005%, which suggests requirement of redesign of the system.3. For the prism array of the discrete optical correlator, a fabrication technique using photo-sensitive polymer with a Twyman-Green interferometer has been developed. The attained precision was 2 degree for the top angle.4. Operational characteristics of the discrete correlator has been evaluated in the OAL-NC experimental system (16 x 16 pixel system). XOR logic was successfully executed in the context of optical array logic.5. For integration of optical systems, a discrete correlation module has been constructed using photo-sensitive polymer. The optical system is composed of two lenses with 15mm diameter and 21.8mm focal length and a prims array. Optical resolution of the module is 16 lp/mm.