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Proceedings Paper

Experimental study of the influence of wave-front aberration on holographic data storage
Author(s): Naruki Yoshida; Kensuke Akieda; Akihito Nakajima; Yosuke Takahata; Manabu Yamamoto
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Paper Abstract

Holographic data storage (HDS) is a prospective, next-generation mass optical storage system. In HDS, wave-front aberration in the optical system causes deterioration of the reconstructed signal quality. In this study, to clarify the margin allowed for HDS drive development, the influence of aberration in the case of wave-front aberration of defocus, where the influence of image degradation is especially high, was measured in the optical system. Further, with the aim to improve the error rate, a finite impulse response (FIR) filter using LMMSE was applied to the image deteriorated by the wave-front aberration. Consequently, we confirmed that the error rate can be reduced by applying the FIR filter for each modulation code.

Paper Details

Date Published: 10 February 2010
PDF: 8 pages
Proc. SPIE 7619, Practical Holography XXIV: Materials and Applications, 76190W (10 February 2010); doi: 10.1117/12.841626
Show Author Affiliations
Naruki Yoshida, Tokyo Univ. of Science (Japan)
Kensuke Akieda, Tokyo Univ. of Science (Japan)
Akihito Nakajima, Tokyo Univ. of Science (Japan)
Yosuke Takahata, Tokyo Univ. of Science (Japan)
Manabu Yamamoto, Tokyo Univ. of Science (Japan)

Published in SPIE Proceedings Vol. 7619:
Practical Holography XXIV: Materials and Applications
Hans I. Bjelkhagen; Raymond K. Kostuk, Editor(s)

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