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Photorefractive real-time phase-coded optical correlation storage using a crossed cylindrical-collimating lens system

机译:使用交叉柱面准直透镜系统的光折射实时相位编码光学相关存储

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摘要

Phase-coded optical correlation storage in photorefractive crystals, using a crossed cylindrical-collimating lens system, has been realized. It possesses the advantages of both storage and correlator. It can perform real time and fast selection of the information correlated to the input information from a great amount of stored information. In Zn:Fe:LiNbO_(3) (0.03 wt. percent Fe, 3 mol. percent Zn), combining this rotational phasecoded multiplexing with angular multiplexing, 36 holograms have been successfully multiplexed and exactly identified in the same crystal volume. The cross talk and angular selectivity of such phase-coded multiplexing are discussed.
机译:已经实现了使用交叉柱面准直透镜系统在光折射晶体中进行相位编码的光学相关性存储。它具有存储和相关器的优点。它可以从大量存储的信息中实时,快速地选择与输入信息相关的信息。在Zn:Fe:LiNbO_(3)(Fe为0.03重量百分比,Zn为3摩尔百分比)中,将这种旋转相位编码多路复用与角度多路复用相结合,已成功多路复用了36张全息图,并在相同的晶体体积中精确地确定了全息图。讨论了这种相位编码复用的串扰和角度选择性。

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