Optical EngineeringOperating curve extraction of a correlator's filter
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The proposed method uses the environment of a correlator to control the phase and amplitude modulation properties of its filter's spatial light modulator. The filter's operating curve is obtained by means of calculations that use the reconstructed Fourier transform of the correlation plane. This characterization allows one to select a good adjustment for the filter's brightness and contrast values as well as finding appropriate values for a better coding.