Athale R A, Astor M E, Yu J
Appl Opt. 1993 Jun 10;32(17):3087-91. doi: 10.1364/AO.32.003087.
A technique for Fourier processing of images larger than the space-bandwidth products of conventional or smart spatial light modulators and two-dimensional detector arrays is described. The technique involves a spatial combination of subimages displayed on individual spatial light modulators to form a phase-coherent image, which is subsequently processed with Fourier optical techniques. Because of the technique's similarity with the mosaic technique used in art, the processor used is termed an optical MOSAIC processor. The phase accuracy requirements of this system were studied by computer simulation. It was found that phase errors of less than λ/8 did not degrade the performance of the system and that the system was relatively insensitive to amplitude nonuniformities. Several schemes for implementing the subimage combination are described. Initial experimental results demonstrating the validity of the mosaic concept are also presented.
描述了一种用于对大于传统或智能空间光调制器及二维探测器阵列的空间带宽积的图像进行傅里叶处理的技术。该技术涉及在各个空间光调制器上显示的子图像的空间组合，以形成一个相位相干图像，随后用傅里叶光学技术对其进行处理。由于该技术与艺术领域中使用的镶嵌技术相似，所以所使用的处理器被称为光学镶嵌处理器。通过计算机模拟研究了该系统的相位精度要求。结果发现，小于λ/8的相位误差不会降低系统性能，并且该系统对幅度不均匀性相对不敏感。描述了几种实现子图像组合的方案。还给出了证明镶嵌概念有效性的初步实验结果。
