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Appl Opt. 2007 Aug 1;46(22):5461-70.

Performance analysis of content-addressable search and bit-error rate characteristics of a defocused volume holographic data storage system.

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Photonics Group, Physics Department, Indian Institute of Technology Delhi, New Delhi 110016, India.


One of the methods for smoothing the high intensity dc peak in the Fourier spectrum for reducing the reconstruction error in a Fourier transform volume holographic data storage system is to record holograms some distance away from or in front of the Fourier plane. We present the results of our investigation on the performance of such a defocused holographic data storage system in terms of bit-error rate and content search capability. We have evaluated the relevant recording geometry through numerical simulation, by obtaining the intensity distribution at the output detector plane. This has been done by studying the bit-error rate and the content search capability as a function of the aperture size and position of the recording material away from the Fourier plane.


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