Bandwidth specification for adaptive optics systems
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A simplified expression for the bandwidth of an adaptive optics system is found to depend on a weighted path integral of the turbulence strength, where the weighting is transverse wind velocity to the 5/3 power. The wave-front corrector is conservatively assumed to match the phase perfectly, at least spatially, if not temporally. For the case of astronomical imaging from a mountaintop observatory, the necessary bandwidth is found to be less than 200 Hz.
[1] D. Fried,et al. Evaluation of r(o) for Propagation Down Through the Atmosphere. , 1974, Applied optics.
[2] David L. Fried,et al. Power spectra requirements for wave-front-compensative systems* , 1976 .