PHASE CALIBRATION AND APPLICATIONS OF A LIQUID-CRYSTAL SPATIAL LIGHT-MODULATOR

A simple phase-characterization method for spatial light modulators is proposed. The low-cost method permits high-precision measurement and provides data for the setting of the spatial-light-modulator operating point in the phase-modulation mode. The dynamic phase response is use d to perform efficient kinoform recording. In order to record the kino form, we modify the global iterative coding to compute phase holograms . Finally, modified phase-phase correlation is introduced. The phase-p hase correlator permits sharper correlation peaks, better energy trans mission, and higher discrimination than an amplitude-phase correlation . Optical experimental results are presented.