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17 September 2002 Cross talk of volume holograms based on speckle-angular multiplexing
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Abstract
The volume holographic optical data storage has been an important and exciting area of research on account of its promising super high density and fast data transfer rate. Recently, much attention has been paid to the novel speckle multiplexing, which has the potential of increasing the current storage density prominently. As is well known, cross talk between holographic gratings is a vital factor that may influence the storage density of hologram. In this paper, we analyzed the cross talk of the speckle-angular multiplexing scheme, in which a random diffuser is added in the front of storage medium along the reference optical path of the original 90-degree storage geometry. And compared it with that of the original angular multiplexing scheme, both theoretically and experimentally. The results indicate that this novel scheme could not only increase the storage density but also decrease the cross talks in the system.
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Jinnan Wang, Qingsheng He, Dong Huang, Jiangang Wang, Minxian Wu, and Guofan Jin "Cross talk of volume holograms based on speckle-angular multiplexing", Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); https://doi.org/10.1117/12.483357
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