Optoacoustic processing of large time-bandwidth signals.

Techniques for achieving time-bandwidth products near 10(4) and storage times up to 1 msec in optoacoustic processors are described. Folded acoustic path designs in two dimensions, and also in three dimensions along the optic axis, were investigated. Design limitations for these devices are presented. Several devices with potential BT operation between 10(3) and 10(4) were built but tested with lower overall performance because of equipment limitations.