Holographic recording method using shift multiplexing system with spherical reference beam

Yuta Nagao; Hiroyuki Kurata; Kaito Okubo; Yu Tsukamoto; Takaaki Matsubara; Shuhei Yoshida; Manabu Yamamoto

doi:10.1117/12.2023585

25 September 2013 Holographic recording method using shift multiplexing system with spherical reference beam

Yuta Nagao, Hiroyuki Kurata, Kaito Okubo, Yu Tsukamoto, Takaaki Matsubara, Shuhei Yoshida, Manabu Yamamoto

Proceedings Volume 8841, Current Developments in Lens Design and Optical Engineering XIV; 884119 (2013) https://doi.org/10.1117/12.2023585
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

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. The mainstream in the world is the angle multiplexing method, however, its beam position control is quite severe. In such situation, we study about shift multiplexing method because it costs not much and its control is easier than the angle multiplexing. In this experiment, we examined shift selectivity of track direction, radial direction and vertical direction of the medium. As a result, combining these different kinds of selectivity, we found a possible multiplexing way to achieve several tera bits per inch square density recording.

Citation Download Citation

Yuta Nagao, Hiroyuki Kurata, Kaito Okubo, Yu Tsukamoto, Takaaki Matsubara, Shuhei Yoshida, and Manabu Yamamoto "Holographic recording method using shift multiplexing system with spherical reference beam", Proc. SPIE 8841, Current Developments in Lens Design and Optical Engineering XIV, 884119 (25 September 2013); https://doi.org/10.1117/12.2023585

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