We implement optical logic operations, using a polarization-encoding architecture based on digital speckle pattern interferometry (DSPI). The method is based on the intensity dependence of DSPI on the rotation of the polarization direction in the paths of the interferometer between acquisition of frames. The 16 two-input logic operations can be achieved and stored in a host computer. This scheme also offers the possibility of creating dynamic logic gates.
© 1996 Optical Society of America
Original Manuscript: July 22, 1996
Published: December 1, 1996
Roberto Torroba, Rodrigo Henao, and Claudia Carletti, "Digital polarization-encoding technique for optical logic operations," Opt. Lett. 21, 1918-1920 (1996)