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22 May 2020 Holographic method for storage of digital information
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Proceedings Volume 11516, Optical Technologies for Telecommunications 2019; 1151604 (2020) https://doi.org/10.1117/12.2566329
Event: XVII International Scientific and Technical Conference "Optical Technologies for Telecommunications", 2019, Kazan, Russian Federation
Abstract
The holographic coding method improves the reliability of storing digital information in memory systems that are subject to external influences that introduce a large number of errors. The method is based on writing to memory instead of the initial data of a digital hologram created in the virtual space by a wave from an input source. The property of the hologram divisibility is used, allowing to recover the recorded data block by its fragment. The achieved level of noise immunity is determined by the size of the hologram. For an 8-bit data block, a 256-bit hologram recording provides recovery of information when 75% of the recorded hologram is lost. The developed decoder corrects the packet of dependent (grouped) errors that distort all bits of the hologram. The number of random independent errors that the decoder corrects can be up to 40% of the recorded information.
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Alexander L. Timofeev, Albert Kh. Sultanov, and Pavel E. Filatov "Holographic method for storage of digital information", Proc. SPIE 11516, Optical Technologies for Telecommunications 2019, 1151604 (22 May 2020); https://doi.org/10.1117/12.2566329
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