Two-dimensional signal processing using a morphological filter for holographic memory

Yo Kondo; Yusuke Shigaki; Manabu Yamamoto

doi:10.1117/12.906554

9 February 2012 Two-dimensional signal processing using a morphological filter for holographic memory

Yo Kondo, Yusuke Shigaki, Manabu Yamamoto

Proceedings Volume 8281, Practical Holography XXVI: Materials and Applications; 82810T (2012) https://doi.org/10.1117/12.906554
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

Today, along with the wider use of high-speed information networks and multimedia, it is increasingly necessary to have higher-density and higher-transfer-rate storage devices. Therefore, research and development into holographic memories with three-dimensional storage areas is being carried out to realize next-generation large-capacity memories. However, in holographic memories, interference between bits, which affect the detection characteristics, occurs as a result of aberrations such as the deviation of a wavefront in an optical system. In this study, we pay particular attention to the nonlinear factors that cause bit errors, where filters with a Volterra equalizer and the morphologies are investigated as a means of signal processing.

Citation Download Citation

Yo Kondo, Yusuke Shigaki, and Manabu Yamamoto "Two-dimensional signal processing using a morphological filter for holographic memory", Proc. SPIE 8281, Practical Holography XXVI: Materials and Applications, 82810T (9 February 2012); https://doi.org/10.1117/12.906554

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KEYWORDS

Holography

Electronic filtering

Filtering (signal processing)

Nonlinear filtering

Signal processing

Image filtering

Optical filters

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