反射式体全息存储角度复用新方案

基于体全息的反射式记录原理,设计并搭建了不同于传统透射式光路的紧凑型反射式体全息存储光路,提出一种新的采用双透镜共焦方法实现数据存储的角度复用方案.通过此系统实现了单点2 000幅图像的连续存储.实验结果表明,反射式光路可以增大全息图的衍射率进而提高存储图像的质量；而双透镜共焦方案易实现且便于控制,可以实现图像的连续存储和高准确度复用；同时减少了光学系统的复杂度,并把复用维度从一维扩展到了水平和垂直二维方向,提高了存储的密度.

New Scheme of Reflection Volume Holographic Storage Angle-multiplexing

The principle of reflection volume holographic storage technology was introduced.A new reflection holographic sonrage beam path that was different from conventional transmission beam path was designed and established.Based on this principle,a new angle-multiplexing scheme was suggested,which was two-lens confocal method.Two thousand holographic images were stored continuously in a signal-point using this system.This method was performed experimentally that been controlled easier and finishing images memory continuously.And it achieved high diffraction efficiency and improved the quality of images.The tow-lens confocal scheme decreased the complexity of system and conldbe multiplexed with high-accuracy.It expands multiplexing dimension from one to two and increases memory density.