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Fig. 2.


Variability of closed-loop OG. For given system parameters we compute Tϕ for 1 000 phase realisations in two seeing configurations: r0 = 18 cm and r0 = 12 cm. The variability of the frame-by-frame OG is shown in the histogram in the right panel and by the highlighted extreme OG curves for each r0 case.

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