Betin A Yu, Bobrinev V I, Donchenko S S, Odinokov S B, Evtikhiev N N, Starikov R S, Starikov S N, Zlokazov E Yu
Appl Opt. 2014 Oct 1;53(28):6591-7. doi: 10.1364/AO.53.006591.
Utilization of computer generation of holographic structures significantly simplifies the optical scheme that is used to record the microholograms in a holographic memory record system. Also digital holographic synthesis allows to account the nonlinear errors of the record system to improve the microholograms quality. The multiplexed record of holograms is a widespread technique to increase the data record density. In this article we represent the holographic memory system based on digital synthesis of amplitude one-dimensional (1D) Fourier transform holograms and the multiplexed record of these holograms onto the holographic carrier using optical projection scheme. 1D Fourier transform holograms are very sensitive to orientation of the anamorphic optical element (cylindrical lens) that is required for encoded data object reconstruction. The multiplex record of several holograms with different orientation in an optical projection scheme allowed reconstruction of the data object from each hologram by rotating the cylindrical lens on the corresponding angle. Also, we discuss two optical schemes for the recorded holograms readout: a full-page readout system and line-by-line readout system. We consider the benefits of both systems and present the results of experimental modeling of 1D Fourier holograms nonmultiplex and multiplex record and reconstruction.
利用计算机生成全息结构显著简化了用于在全息存储记录系统中记录微全息图的光学方案。此外，数字全息合成能够考虑记录系统的非线性误差，以提高微全息图的质量。全息图的复用记录是一种广泛应用的提高数据记录密度的技术。在本文中，我们介绍了一种基于一维（1D）傅里叶变换全息图数字合成以及使用光学投影方案将这些全息图复用记录到全息载体上的全息存储系统。一维傅里叶变换全息图对编码数据对象重建所需的变形光学元件（柱面透镜）的取向非常敏感。在光学投影方案中对具有不同取向的多个全息图进行复用记录，可以通过将柱面透镜旋转相应角度从每个全息图重建数据对象。此外，我们讨论了两种用于读取记录全息图的光学方案：全页读取系统和逐行读取系统。我们考虑了这两种系统的优点，并展示了一维傅里叶全息图非复用和复用记录与重建的实验建模结果。
