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Opt Lett. 2005 Jun 1;30(11):1306-8.

Multiple-image encryption by wavelength multiplexing.

Author information

1
College of Physical Sciences, Graduate School of the Chinese Academy of Sciences, PO. Box 3908, Beijing 100049, China. ghsitu@mail.china.com

Abstract

We introduce the technique of wavelength multiplexing into a double random-phase encoding system to achieve multiple-image encryption. Each primary image is first encrypted by the double phase encoding method and then superposed to yield the final enciphered image. We analyze the minimum separation between two adjacent multiplexing wavelengths through cross talk and the multiplexing capacity through the correlation coefficient. Computer simulations are performed to demonstrate the concept. This technique can be used for hiding multiple images as well.

PMID:
15981515
DOI:
10.1364/ol.30.001306

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