Proceedings PaperUse Of The Superheterodyne Wavefront Analyzer For Ground-To-Space Power Transfer
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Transfer of optical power from ground-to-space at short wavelengths requires an adaptive wavefront corrector and a sensitive wavefront analyzer. In the several applications envisioned, coherent radiation from a laser beacon or retroreflector and ground based illuminator will be available for wavefront sensing. The superheterodyne wavefront analyzer can therefore be employed for performance approaching the quantum limit. The basics of the superheterodyne approach are discussed and its performance as a wavefront analyzer reviewed.