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

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

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.

Citation Download Citation

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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