Optical holographic encrypted data storage using lenticular lens array phase-encoded multiplexing

C. C. Chang; G. L. Chen; P. C. Teng; W. K. Young

doi:10.1117/12.661571

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25 April 2006 Optical holographic encrypted data storage using lenticular lens array phase-encoded multiplexing

C. C. Chang, G. L. Chen, P. C. Teng, W. K. Young

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Proceedings Volume 6187, Photon Management II; 618710 (2006) https://doi.org/10.1117/12.661571
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

We propose a novel optical holographic encrypted data storage scheme based on phase encoding multiplexed scheme. In the proposed data storage scheme, patterns of encrypted images are stored holographically in a photorefractive LiNbO₃:Fe crystal by using lenticular lens array (LLA) sheet phase-encoded multiplexing. Experimental results show that rotating a LLA placed as a phase modulator in the path of the reference beam provides a simple yet effective method of increasing the holographic storage capabilities of the crystal. Combining this rotational multiplexing with two-axis tilting multiplexing offers not only further data storage capabilities but also data encryption possibilities.

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C. C. Chang, G. L. Chen, P. C. Teng, and W. K. Young "Optical holographic encrypted data storage using lenticular lens array phase-encoded multiplexing", Proc. SPIE 6187, Photon Management II, 618710 (25 April 2006); https://doi.org/10.1117/12.661571

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