数字微镜器件在光学矢量矩阵乘法器中的特性及应用分析

为了分析数字微镜器件在矢量矩阵乘法器中作为空间光调制器的可行性，根据数字微镜器件（DMD）以及光学矢量矩阵乘法器的基本结构原理，设计了应用2块DMD的光学矢量矩阵乘法器，此系统中由两片数字微镜器件分别完成光学矢量和矩阵的输入。从理论分析及实验两方面对DMD的光学特性表现以及它对乘法器的计算性能影响进行了研究，得到的结果与预期相符合。实验结果表明通过矩阵编码、选择级次等方法可有效降低干涉衍射对矢量矩阵乘法器影响。这对光学矢量矩阵乘法器的结构优化设计、编码规则研究具有一定的参考价值，有利于促进光学乘法器的关键应用技术研究，对光学矢量矩阵乘法器的设计具有一定的指导意义。

Characteristic and Application of Digital Micro-Mirror Device in Optical Vector-Matrix Multiplier System

In order to analyze the feasibility of using DMD as the spatial light modulators in the optical vector matrix multiplier system, on the basis of the primary structure and principle of the digital micro-mirror device and the optical vector matrix multiplier, an optical vector matrix multiplier system which introduces two digital micro-mirror devices is proposed in this paper. In the system both the input of the optical vector and the matrix is finished by the digital micro-mirror devices. And by theory analyzing and experiments, we gain the optical properties of the DMD and the influence on the system introduced by the DMD. The results we gain are in accordance with the anticipation. It is proved that by matrix-coding and orderselecting the influence of diffraction and interference can be reduced a lot. These conclusions are meaningful for the designation and coding methods of the optical vector matrix multiplier. They are useful for the study of the key applications of the optical multiplier and have some significance for the designation of the optical vector matrix multiplier.