DYNAMIC 2-DIMENSIONAL BEAM-PATTERN STEERING TECHNIQUE

A dynamic two-dimensional laser-beam-pattern steering technique using photorefractive holograms in conjunction with electrically addressed s patial light modulators is proposed and investigated. The experimental results demonstrate the dynamic steering of random combinations of ba sis beam patterns. The proposed method has the advantages of random be am-pattern combination, good beam intensity uniformity, and higher dif fraction efficiency compared with conventional methods.