Reflection-type Holographic Memory with Storage Capacity of More Than One TeraByte by Confocal Three-dimensional Speckle Multiplexing

为了开发新一代光盘存储器，我们在三维散斑移位复用反射型全息存储器中成功地实现了4.35TB的存储容量，其存储容量是无共焦方案的3.36倍。在页面数据编码方面，我们提出了多分辨率数据编码，使每一页的数据量增加了1.5倍。这些结果表明，将这些方法结合起来，实现1TB的存储容量是可能的。

For the development of next generation optical disk memory, we succeeded to achieve storage capacity of 4.35TB by using a confocal scheme that is 3.36 times larger than that without the confocal scheme in a reflection-type holographic memory with three-dimensional speckle shift multiplexing. In page data coding, we increased the amount of data in one page by 1.5 times larger by proposing multi-resolution data coding. These results indicated that it is possible to achieve storage capacity of 1TB by combining these methods.