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A Hybrid Stabilization Approach for Deep-Space Optical Communications Terminals

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4 Author(s)

Near-Earth laser communication system designs typically use the near-symmetric power levels in duplex links as bright sources upon which to base active beam stabilization. In deep space, it may be difficult to provide a constant, high-power laser beacon as a stabilization reference. We describe here several means, aimed at different frequency ranges of control, for generating a combined pointing reference and for actively controlling beam position. Such a blended approach gives a highly flexible system for performing beam stabilization in deep space, where distances, conditions, and power levels can vary widely.

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Proceedings of the IEEE  (Volume:95 ,  Issue: 10 )