Shared-Aperture Multiplexed Holographic Scanning Telescopes

Shared-aperture multiplexed holographic scanning telescopes have been proposed for use in lidar transceivers and other laser transmitters and receivers in remote sensing instruments. Examples of instruments that could incorporate the proposed telescopes include airborne terrain mappers, and lidar wind-shear-profiling systems to increase safety of airplane takeoffs and landings. Unlike prior scanning telescopes, the proposed telescopes would contain no moving parts; hence, relative to prior scanning telescopes, the proposed telescopes could be made lighter, more compact, and more reliable.