Abstract
The behavior of a binary, spatial light modulator (SLM) in both the input and Fourier planes of a coherent optical correlator system is investigated using both a computer model and a working laboratory correlator. The computer model, based upon the fast Fourier transform, simulates the effect of the SLMs in the system and permits the examination of such parameters as input noise and shifts and their effect upon the theoretical output. The experimental correlator contains a SLM in the input plane operating in the binary amplitude mode and a SLM in the Fourier plane operating in the binary phase-only mode. The output of the system is compared to the model and analyzed. Significant performance results obtained with the computer model are also examined.
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