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.
© 2006 Optical Society of America
Original Manuscript: December 21, 2005
Revised Manuscript: February 17, 2006
Manuscript Accepted: February 20, 2006
Unnikrishnan Gopinathan, Thomas J. Naughton, and John T. Sheridan, "Polarization encoding and multiplexing of two-dimensional signals: application to image encryption," Appl. Opt. 45, 5693-5700 (2006)