Polarization orthogonal double-channel holographic optical data storage method and its system |
Title： |
| Polarization orthogonal double-channel holographic optical data storage method and its system |
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Application Number： |
200410006158 |
Application Date： |
2004/03/04 |
Announcement Date： |
2005/01/05 |
Pub. Date： |
2006/11/08 |
Publication Number： |
1560839 |
Announcement Number： |
1284149 |
Grant Date： |
2006-11-8 |
Granted Pub. Date： |
2006-11-8 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G11B 7/006 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
He Qingsheng, Wei Haoyun, Cao Liangcai |
Key Words： |
Polarization orthogonal, double-channel, holographic, optical data storage, method, system |
Abstract： |
The invention relates a storing method and system for polarization quadrature double-channel holographical optic data, which belongs to optic storing field. The method and system in the invention use character of the quadrature optic fields are not intervene each other and the Bragg selectivity of the holographical record, it realizes the double-channel record for the information modulated by the intervening field whose two optic field polarization directions are quadrature in the same position of the organic light leaded polymer recording media with the isotropy character, and uses the Bragg selectivity of the holographical storing method to realizes the low crosstalk between data pages and the single reappearance of the data page. The invention increases the parallel property of the storing process of the optic data, the parallel property of the storing process is doubled, at the same time, it maintains the parallel property invariable in the process of optic data reading process, upgrades the record velocity, at the same time, it reduces the storing velocity of the optic data and the asymmetry of transmission velocity. |
Claim： |
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Priority： |
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PCT： |
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