Acoustooptically controlled true time delays: experimental results

A novel microwave true time delay system that uses high-speed optical intensity modulation in conjunction with acoustooptic deflection to address discrete fiber-optic delay lines has been proposed and analyzed. This letter presents experimental results that demonstrate this time delay technique using a typical pulse modulated radar waveform. Ultimately, this technique could be implemented in an integrated optics configuration to provide a small, lightweight, and high-performance time delay unit for modern phased array systems.