Iterative generation of holograms on spatial light modulators

Iterative learning procedures on a hybrid electro-optic system can be employed to generate holograms on inexpensive liquid-crystal-television spatial light modulators. The algorithm takes into account random electronic noise in the system and compensates for spatial-light-modulator distortions. Experimental results are given for the reconstruction of intensity distribution, and computer simulations demonstrate the possibility of a complete complex amplitude reconstruction. Most of the recently considered architectures for optical signal processing contain computer-generated holograms or spatial filters. It is frequently desired to update these components in real time by employing spatial light modulators (SLM's). Unfortunately, when computer-generated components are displayed on currently available SLM's, their performance is substantially deteriorated owing to limited information capacity, distortions, and interpixel dead regions. The objective of this research is the implementation o