关键词: 线性迭加, 计算机生成全息图, 光互联, 空间光调制器

Abstract: With the distribution of optic points in the optic interconnection on the detection plane（image plane） as examples and by means of simulating annealing method，how to generate the binary and four-phase Fourier transform holograms was discussed firstly in this paper and then an algorithm of converse computing hologram was provided on the basis of the character of Fourier transform.In this algorithm，the distribution of optic points was set as Fourier transform plane of a hologram，and every optic point was formed by Fourier transform of the sinusoidal grating with specific spatial frequency in the hologram plane whereas the spatial frequency of every sinusoidal grating was determined by the coordinate（interconnection） of optic points in the detection plane.In this case，the hologram represented a linear summation of a series of sinusoidal grating.This algorithm is characterized by speedy in computation and accurate in the positioning of optic interconnection.

Key words: linear summation, computer generation hologram, optic interconnection, spatial light modulator