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Appl Opt. 2009 Dec 20;48(36):6851-61. doi: 10.1364/AO.48.006851.

Homodyne readout on dc-removed coaxial holographic data storage.

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  • 1Research and Technology Group, Fuji Xerox Company, Ltd., 430 Sakai, Nakai-machi, Ashigarakami-gun, Kanagawa 259-0157, Japan.


Multiplexing characteristics of a dc-removed coaxial holographic storage system were evaluated for what is believed to be the first time. Our dc-removed coaxial system achieved 3.5 times higher raw data density than a conventional coaxial system that involved dc recording. The increase of the data density was due not only to less M/# consumption but also to the effects of signal amplification and noise reduction by use of the positive and negative images reconstructed from the same holograms.

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