Wavefront compensation method using novel index in holographic data storage

N. Ishii; T. Muroi; N. Kinoshita; K. Kamijo; N. Shimidzu

doi:10.2971/jeos.2010.10036s

Journal of the European Optical Society - Rapid publications, Vol 5 (2010)

Wavefront compensation method using novel index in holographic data storage

N. Ishii, T. Muroi, N. Kinoshita, K. Kamijo, N. Shimidzu

Abstract

Photopolymer media that uses holographic data storage generally causes volume shrinkage. This volume shrinkage distorts the recorded interference fringes. We propose an adaptive optics using novel index to compensate this distortion. The SNR value is improved from 2.1 dB to 3.4 dB in the worst part of a reproduced image and the peak intensity and the full width of the half maximum of an angle are improved by 6% and 10%, respectively. These results prove that adaptive optics using this novel index worked effectively.

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