Holographic associative memory with nonlinearities in the correlation domain

Y. Owechko, G. J. Dunning, E. Marom, B. H. Soffer

Research output: Contribution to journalArticlepeer-review


We describe a shift-invariant all-optical holographic associative memory implemented using phase conjugate mirrors and Fourier transform holograms. A key feature of our system is the large storage capacity obtained through the use of nonlinearities in the correlation domain. The use of angularly multiplexed plane wave reference beams allows access to the correlation domain where nonlinearities in the phase conjugate mirrors can be used to reduce greatly crosstalk and correlation noise.

Original languageEnglish
Pages (from-to)1900-1910
Number of pages11
JournalApplied Optics
Issue number10
StatePublished - 15 May 1987
Externally publishedYes


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