Information capacity of 3-D holographic data storage
نویسندگان
چکیده
منابع مشابه
Experimental evaluation of user capacity in holographic data-storage systems.
An experimental procedure for determining the relation between the number of stored holograms and the raw bit-error rate (BER) (the BER before error correction) of a holographic storage system is described. Compared with conventional recording schedules that equalize the diffraction efficiency, scheduling of recording exposures to achieve a uniform raw BER is shown to improve capacity. The expe...
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We present an overview of our recent research efforts on read–write volume holographic digital data storage. High areal density (394 bits/square micron) holographic data storage, and a novel system architecture for extending this high density to high capacity are described. We also discuss signal–processing of data pages to compensate for pixel shifts, and two–color gated storage media to provi...
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The storage capacity of holographic associative memories is estimated. An argument based on the available degrees of freedom shows that the number of patterns that can be stored is limited by the space-bandwidth product of the hologram divided by the number of pixels in each pattern. A statistical calculation shows that if we attempt to store associations by multiply exposing the hologram, the ...
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Introduction With its omnipresent computers, all connected via the Internet, the Information Age has led to an explosion of information available to users. The decreasing cost of storing data, and the increasing storage capacities of the same small device footprint, have been key enablers of this revolution. While current storage needs are being met, storage technologies must continue to improv...
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Introduction: NASA’s future missions would require massive high-speed onboard data storage capability to Space Science missions. For Space Science, such as the Europa Lander mission, the onboard data storage requirements would be focused on maximizing the spacecraft’s ability to survive fault conditions (i.e. no loss in stored science data when spacecraft enters the “safe mode”) and autonomousl...
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ژورنال
عنوان ژورنال: Optical and Quantum Electronics
سال: 1993
ISSN: 0306-8919,1572-817X
DOI: 10.1007/bf00444333