Study of the Integrated Collinear Holographic Storage System
| Autor: | Zi-Bin Gao, 高子斌 |
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| Rok vydání: | 2007 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 In this study, we combine the diffractive optical element（DOE） with the collinear holographic storage system to realize the integrated collinear holographic storage system. We combine the system of the optical pickup head with the collinear holographic storage system that was proposed by the Optware Corporation. We adopt a diffractive optical element that can split light in this system to simplify the huge configuration of the collinear holographic storage system. As a result, we can get an integrated collinear holographic storage system with small form factor and high storage capacity. In this system, a transmissive spatial light modulator（SLM） with central data part and outer-ring reference part is adopted for modulating the laser beam. When the laser beam focuses on the photorefractive crystal, central data part and outer-ring reference part will interfere to form the phase grating. When the reference beam is incident on the phase grating, the system will diffract out the reference beam and reconstruct the central data part. We adopt a diffractive optical element on the reading path for splitting the reconstructed beam. In this study, we realize the integrated collinear holographic storage system with small form factor and high storage capacity by utilizing the characteristics of the diffractive optical element. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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