| Presentation | 2016-12-08 Optimization of reference beam width for high-capacity holographic data storage Takeru Utsugi, Kazuyoshi Yamazaki, Kenichi Shimada, Yukinobu Tada, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A cold storage is low-cost and long archival lifetime storage for data of relatively few access frequency (cold data). Holographic data storage has a potential to achieve high-capacity cold storage systems more than 1TB/disc. Recently, we developed a new technology for high capacity of angular-multiplexing holographic data storage using the reference beam diameter optimization with a special wedge prism optical system. In this paper, we report the theory and the design method of the wedge prism optical system. Our developed technology improves both the medium use efficiency and light use efficiency in hologram recording. We confirmed that the developed technology reduces an unwanted exposure region on a disc by 1/10 of conventional mirror method and achieve 5% of the target unwanted exposure rate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical Disc / Holographic Data Storage / Angular-Multiplexing / High-Capacity Recording / Wedge Prism |
| Paper # | MR2016-32 |
| Date of Issue | 2016-12-01 (MR) |
| Conference Information | |
| Committee | MR / ITE-MMS |
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| Conference Date | 2016/12/8(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ehime Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal Processing, etc. |
| Chair | Yoshihiro Okamoto(Ehime Univ.) / Eiichi Miyashita(NHK) |
| Vice Chair | |
| Secretary | (Kogakuin Univ.) / (AIST) |
| Assistant | Kiwamu Kudo(Toshiba) / Shuhei Yoshida(Kinki Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Magnetic Recording / Technical Group on Multi-media Storage |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optimization of reference beam width for high-capacity holographic data storage |
| Sub Title (in English) | |
| Keyword(1) | Optical Disc |
| Keyword(2) | Holographic Data Storage |
| Keyword(3) | Angular-Multiplexing |
| Keyword(4) | High-Capacity Recording |
| Keyword(5) | Wedge Prism |
| 1st Author's Name | Takeru Utsugi |
| 1st Author's Affiliation | Hitachi, Ltd.(Hitachi) |
| 2nd Author's Name | Kazuyoshi Yamazaki |
| 2nd Author's Affiliation | Hitachi, Ltd.(Hitachi) |
| 3rd Author's Name | Kenichi Shimada |
| 3rd Author's Affiliation | Hitachi, Ltd.(Hitachi) |
| 4th Author's Name | Yukinobu Tada |
| 4th Author's Affiliation | Hitachi-LG Data Storage, Inc.(HLDS) |
| Date | 2016-12-08 |
| Paper # | MR2016-32 |
| Volume (vol) | vol.116 |
| Number (no) | MR-348 |
| Page | pp.pp.15-20(MR), |
| #Pages | 6 |
| Date of Issue | 2016-12-01 (MR) |