Multiplexed recording based on the reference wave correlation for computer-generated holographic data storage
| Autor: | Aoto Matsumoto, Takanori Nomura, Naru Yoneda, Yusuke Saita |
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| Rok vydání: | 2020 |
| Předmět: |
Quantum optics
Computer simulation Computer science business.industry Phase (waves) Holography 02 engineering and technology Holographic data storage 01 natural sciences Multiplexing Reference wave Atomic and Molecular Physics and Optics law.invention 010309 optics Correlation 020210 optoelectronics & photonics Optics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering business |
| Zdroj: | Optical Review. 27:391-398 |
| ISSN: | 1349-9432 1340-6000 |
| DOI: | 10.1007/s10043-020-00607-7 |
| Popis: | Holographic data storage (HDS) based on a computer-generated hologram (CGH) technique has been proposed as a promising approach to realize an in-line and simple HDS system. This work focuses on multiplexed recording for CGH-based HDS, and the approach based on the reference wave correlation is introduced to the HDS. For the proposed method, the processes for a CGH design are modified to generate reference waves with different phase distributions for each recording. Since holograms are recorded to the same region in a medium with independent reference waves, recorded data-pages are selectively reconstructed by the corresponding reference wave illuminations. The experimental demonstration confirms the feasibility of the proposed method, and the theoretical characteristic for the number of recordable multiplexed holograms is estimated by the numerical simulation. |
| Databáze: | OpenAIRE |
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