A phase-based optical encryption system with polarisation encoding

In this paper we present an optical encryption system based entirely on the encryption of information using the phase component of a wavefront. The novelty of our approach lies in the utilisation of polarisation for the visualisation of the decoded information. We show results for an experimental sy...

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Bibliographic Details
Published inOptics communications Vol. 173; no. 1; pp. 177 - 183
Main Authors Mogensen, Paul C, Glückstad, Jesper
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 2000
Elsevier Science
Subjects
Decryption
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical elements, devices, and systems
Optical encryption
Optical processors, correlators, and modulators
Optics
Phase-only
Physics
Spatial light modulator
Phase-only
Decryption
Optical encryption
Spatial light modulator
Spatial light modulators
Optical polarization
Encoding
Optical phase
Experimental study
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Summary:In this paper we present an optical encryption system based entirely on the encryption of information using the phase component of a wavefront. The novelty of our approach lies in the utilisation of polarisation for the visualisation of the decoded information. We show results for an experimental system in which two parallel aligned liquid spatial light modulators are used to produce and subsequently decrypt binary optical phase information. We demonstrate that the direct pixel mapping approach that we use provides a robust and simple to implement architecture for optical encryption.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0030-4018
1873-0310
DOI:10.1016/S0030-4018(99)00633-1