Limiting flux as a function of the Strehl ratio (detector noise regime case) for turbulence strengths of D/r₀ = 8 (left) and D/r₀ = 2 (right). Plots are shown for an unresolved (V = 1), fairly resolved (V = 0.5), and fully resolved (V = 0.1) source, respectively. Curves are going by pair for singlemode (solid lines) and multimode (dotted lines) cases. The fixed parameters have the same values as previous figures.