Abstract

One of the major advantages of all-optical processing is in a high degree of parallelism. We need a spatial light modulator (SLM) with a large number of pixels, access time as short as possible and large dynamic range to be given the advantage. Today we can use two kinds of SLM, liquid crystal light valves (LCLV) and PROM devices using Bi₁₂SiO₂₀Single crystal(BSO-PROM).¹⁾ However these SLMs with a large dynamic range have relatively long access time because the sensitivities of materials used as photosensors in the devices are low. Photosensitivity of electro-optical crystal is one of the important factors for high speed operations in PROM devices, because low sensitive devices need light sources with a large power.

© 1997 Optical Society of America