Secure holographic storage using single phase encoding

Tien Viet Vu; Seung-Woo Lee; Nam Kim; Sang-Keun Gil; Eun-Kyong Kim

doi:10.1117/12.762982

25 January 2008 Secure holographic storage using single phase encoding

Tien Viet Vu, Seung-Woo Lee, Nam Kim, Sang-Keun Gil, Eun-Kyong Kim

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Proceedings Volume 6912, Practical Holography XXII: Materials and Applications; 691216 (2008) https://doi.org/10.1117/12.762982
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

Abstract

A fully optical encryption system based on the single-phase encryption method is presented. A two-dimensional array of real-valued data is phase encoded and scrambled with a random phase key for encryption. The encrypted data is stored holographically in a DuPont photopolymer, and is reconstructed by conjugate readout. The original data can be retrieved using a same phase key for decryption and an interferometer for phase-to-intensity conversion. The influence of a limited bandwidth on the bit-error-rate in the decrypted data is evaluated. With binary data, error-free decryption can be possible even when a large fraction of encrypted data is lost.

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Tien Viet Vu, Seung-Woo Lee, Nam Kim, Sang-Keun Gil, and Eun-Kyong Kim "Secure holographic storage using single phase encoding", Proc. SPIE 6912, Practical Holography XXII: Materials and Applications, 691216 (25 January 2008); https://doi.org/10.1117/12.762982

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KEYWORDS

Binary data

Camera shutters

Holography

Diffraction

Data conversion

Fourier transforms

Computer programming

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