Acoustooptic modulators as switchable beam-splitters in high-speed holography

Two acoustooptic deflection devices are used as beam-splitters to realize an optical set-up for double-pulse high-speed holography. The essential features of these beam-splitters are: the ratio of object to reference light can be adjusted by the sound intensity, and the optical path can be altered quickly by turning the sound on and off. The influence of the frequency shift between the object and reference wave is discussed and experimental results are shown.