We present experimental results from an all-optical associative memory that combines holography and phase conjugation. The device has the capability to recall a complete image when merely a portion of the stored image is input to the system. Multiple superimposed two-dimensional images with gray scale can be stored and recalled. In addition, we have demonstrated the system's invariance to translation of the input images.
© 1987 Optical Society of America
Original Manuscript: November 3, 1985
Manuscript Accepted: February 2, 1987
Published: May 1, 1987
G. J. Dunning, E. Marom, Y. Owechko, and B. H. Soffer, "All-optical associative memory with shift invariance and multiple-image recall," Opt. Lett. 12, 346-348 (1987)