Study on high-transfer-rate high-capacity holographic data storage with spatial quadrature amplitude modulation

• Project/Area Number: 26820134
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: Fukuoka University
• Principal Investigator: BUNSEN Masatoshi 福岡大学, 工学部, 准教授 (50412573)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: ホログラフィックデータストレージ / 空間直交振幅変調 / 光メモリ

Outline of Final Research Achievements

A signal beam modulation method called spatial quadrature amplitude modulation (SQAM) in which the spatial phase in addition to the spatial intensity of the signal beam is two-dimensionally modulated was studied to improve the data transfer rate and to increase the storage capacity of holographic data storage. The detection and demodulation methods of the SQAM signal beam which is holographically recorded and reconstructed in holographic material are experimentally and numerically investigated with several interferometric measuring techniques. The effectiveness of the phase-shift embedding method which realizes the single-shot detection of the intensity and the phase distributions of SQAM signal beam was also examined in detail.

Research Products

• [Presentation] ホログラフィックデータストレージにおけるSQAM信号の最小二乗法を用いた等化 (2016)
  • Author(s): 佐藤隆典，菅野円隆，文仙正俊
  • Organizer: 2016年電子情報通信学会総合大会
  • Place of Presentation: 九州大学（福岡県・福岡市）
  • Year and Date: 2016-03-15
• [Presentation] 強度輸送方程式法と連続的位相変調による空間直交振幅変調信号光の高精度非干渉検出 (2016)
  • Author(s): 吉冨圭史郎，菅野円隆，文仙正俊
  • Organizer: 2016年電子情報通信学会総合大会
  • Place of Presentation: 九州大学（福岡県・福岡市）
  • Year and Date: 2016-03-15
• [Presentation] 位相シフト埋め込み法による空間直交振幅変調信号光検出の性能評価 (2016)
  • Author(s): 柴田雄大，菅野円隆，文仙正俊
  • Organizer: 映像情報メディア学会マルチメディアストレージ研究会
  • Place of Presentation: 北海道大学（北海道・札幌市）
  • Year and Date: 2016-02-22
• [Presentation] Single-shot detection of spatially quadrature amplitude modulated signals in holographic data storage (2015)
  • Author(s): Tatsuki Yamamoto, Keishiro Yoshidomi, Kazutaka Kanno, and Masatoshi Bunsen
  • Organizer: 20th Microoptics Conference (MOC'15)
  • Place of Presentation: 福岡国際会議場（福岡県・福岡市）
  • Year and Date: 2015-10-27
  • Int'l Joint Research
• [Presentation] Linear minimum mean-square-error equalization of spatially quadrature amplitude modulated signals in holographic data storage (2015)
  • Author(s): Takanori Sato, Kazutaka Kanno, and Masatoshi Bunsen
  • Organizer: International Symposium on Optical Memory 2015 (ISOM2015)
  • Place of Presentation: 富山国際会議場（富山県・富山市）
  • Year and Date: 2015-10-06
  • Int'l Joint Research
• [Presentation] 強度輸送方程式法による空間直交振幅変調信号光の非干渉検出に関する検討 (2015)
  • Author(s): 吉冨圭史郎，菅野円隆，文仙正俊
  • Organizer: 平成27年度電気情報関係学会九州支部連合大会
  • Place of Presentation: 福岡大学（福岡県・福岡市）
  • Year and Date: 2015-09-27
• [Presentation] フーリエ縞解析法による空間直交振幅変調信号光の復調性能向上に関する検討 (2015)
  • Author(s): 山本達貴，菅野円隆，文仙正俊
  • Organizer: 平成27年度電子情報通信学会九州支部学生会第23回学生会講演会
  • Place of Presentation: 福岡大学（福岡県・福岡市）
  • Year and Date: 2015-09-05
• [Presentation] ホログラフィックメモリにおける空間直交振幅変調信号の検出法に関する検討 (2015)
  • Author(s): 文仙正俊，菅野円隆，久岡巧弥，柴田雄大，佐藤隆典
  • Organizer: 映像情報メディア学会マルチメディアストレージ研究会
  • Place of Presentation: 北海道大学
  • Year and Date: 2015-02-23 – 2015-02-24
• [Presentation] ホログラム記録再生された空間直交振幅変調信号の検出性能評価 (2014)
  • Author(s): 久岡巧弥，菅野円隆，文仙正俊
  • Organizer: 2014年電子情報通信学会ソサイエティ大会
  • Place of Presentation: 徳島大学
  • Year and Date: 2014-09-23 – 2014-09-26