Recording and Reconstruction of 38-Level Spatial Quadrature-Amplitude Modulation Signal in Double-Referential Holographic Memory

DOI Web Site 14 References
  • ZUKERAN Keisuke
    Graduate School of Information Science and Technology, Hokkaido University
  • OKAMOTO Atsushi
    Department of Systems Design and Informatics, Kyushu Institute of Technology
  • TAKABAYASHI Masanori
    Department of Systems Design and Informatics, Kyushu Institute of Technology
  • SHIBUKAWA Atsushi
    Department of Systems Design and Informatics, Kyushu Institute of Technology
  • TOMITA Akihisa
    Department of Systems Design and Informatics, Kyushu Institute of Technology

Bibliographic Information

Other Title
  • 2重参照型ホログラフィックメモリにおける38値空間直交振幅変調信号の記録再生(コンシューマ機器および一般)
  • 2重参照型ホログラフィックメモリにおける38値空間直交振幅変調信号の記録再生
  • 2ジュウ サンショウガタ ホログラフィックメモリ ニ オケル 38チ クウカン チョッコウ シンプク ヘンチョウ シンゴウ ノ キロク サイセイ

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Description

We propose a double-referential holographic memory (DRHM) that can detect phase modulation signal by just entering reference beam into recording medium without additional system for generation and irradiation of the beam to interfere with signal beam. In this technique, by highly-accurate and simplified complex amplitude detection, high multi-level phase modulation signal and spatial quadrature-amplitude modulation (SQAM) signal become available, so it is expected that storage capacity and data transfer rate are greatly increased. In this paper, we describe the basic operation of the DRHM and evaluate multiple recording/reconstruction characteristics by numerical simulation. Besides, the method for furthermore improving reconstruction quality is newly proposed and its effectiveness is demonstrated.

Journal

  • ITE Technical Report

    ITE Technical Report 37.10 (0), 1-7, 2013

    The Institute of Image Information and Television Engineers

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