Polarization encoding and multiplexing of two-dimensional signals: application to image encryption

Unnikrishnan Gopinathan; Thomas J Naughton; John T Sheridan

doi:10.1364/ao.45.005693

Polarization encoding and multiplexing of two-dimensional signals: application to image encryption

Appl Opt. 2006 Aug 1;45(22):5693-700. doi: 10.1364/ao.45.005693.

Authors

Unnikrishnan Gopinathan¹, Thomas J Naughton, John T Sheridan

Affiliation

¹ School of Electrical, Electronic, and Mechanical Engineering, College of Engineering, Mathematics and Physical Sciences, University College Dublin, Belfield, Dublin 4, Ireland.

PMID: 16855668
DOI: 10.1364/ao.45.005693

Abstract

We discuss an optical system that encodes an input signal to a polarization state, using a spatial light modulator (SLM). Using two SLMs the optical system multiplexes two 2D signals in the polarization domain, and we demonstrate the multiplexing of two binary images. The encryption and decryption of two binary images using an XOR operation is also presented.