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14 March 2023 Numerical investigation of the storage density in multi-valued holographic data storage systems (Conference Presentation)
Ryushi Fujimura, Tsutomu Shimura
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Proceedings Volume PC12444, Ultra-High-Definition Imaging Systems VI; PC1244402 (2023) https://doi.org/10.1117/12.2655920
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
We have investigated the storage density for the intensity-modulated and phase-modulated signals by using a holographic simulator. In our simulation, the diffracted image was calculated considering two important aspects in actual holographic data storage systems. One is the aperture inserted in the signal optical path, and the other is the oblique hologram shape formed in the recording medium. Our numerical simulation revealed that 8-level phase-modulated multivalued signal increases the storage density by a factor of 2.4 compared to the intensity binary signals. We also report on our recent studies for designing a signal pattern to increase the storage density.
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Ryushi Fujimura and Tsutomu Shimura "Numerical investigation of the storage density in multi-valued holographic data storage systems (Conference Presentation)", Proc. SPIE PC12444, Ultra-High-Definition Imaging Systems VI, PC1244402 (14 March 2023); https://doi.org/10.1117/12.2655920
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KEYWORDS
Holographic data storage systems
Data storage
Interference (communication)
Binary data
Holograms
Holography
Image quality
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