Share Email Print

Proceedings Paper

Applications of phase masks in volume holographic data storage system and correlators
Author(s): Wei Ren; Qiang Ma; Liangcai Cao; Qingsheng He; Guofan Jin
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Effects of phase masks, used in content-addressable volume holographic data storage system, on the spectrum modulation, image reconstruction, and content search capability are analyzed. We have investigated the influence of varying the pixel structure of phase masks on Fourier-transform holographic recording and reconstruction errors. The effect on reconstruction errors of using a (0, π) two-level phase mask is studied. The case that a single pixel in the phase mask extended to cover four or more pixels in the spatial light modulator (SLM) is discussed. The reconstruction errors of a recorded binary data page and the field amplitude in the Fourier plane are evaluated when the phase mask is misaligned to the SLM. We have also investigated the performance of phase masks in terms of suppressing the diffraction sidelobes which lead to correlation cross talk and sharpening the correlation peaks. The results provide a useful support for the mask design, fabrication and applications in the practical content-addressable volume holographic data storage.

Paper Details

Date Published: 21 November 2007
PDF: 8 pages
Proc. SPIE 6827, Quantum Optics, Optical Data Storage, and Advanced Microlithography, 682710 (21 November 2007); doi: 10.1117/12.756388
Show Author Affiliations
Wei Ren, Tsinghua Univ. (China)
Qiang Ma, Tsinghua Univ. (China)
Liangcai Cao, Tsinghua Univ. (China)
Qingsheng He, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 6827:
Quantum Optics, Optical Data Storage, and Advanced Microlithography
Chris A. Mack; Guangcan Guo; Guofan Jin; Song-hao Liu; Kees A. Schouhamer Immink; Jinfeng Kang; Jun-en Yao; Keiji Shono; Osamu Hirota, Editor(s)

© SPIE. Terms of Use
Back to Top