Abstract
We present linear conjugated combined aberration modes with a concentric pupil diameter
of 4 mm. The combinations are according to the coupling relationship between Zernike modes over the
concentric circle domain within the unit circle and the root mean square decreasing amplitude ratio
of the corresponding aberration modes in the concentric pupil, in which the reconstruction pupil
diameter is 6 mm. Each combined mode shares the characters of 2 radial orders apart, the same
azimuth frequency, the same coefficient sign, and the prescribed amount, such as (C<sub>2</sub><sup>0</sup> = 0.7λ,
C<sub>4</sub><sup>0</sup> = 0.3λ), (C<sub>3</sub><sup>-3</sup> = 0.8λ, C<sub>5</sub><sup>-3</sup> = 0.3λ), and so on. We also analyze the influence
of the combined modes on optical quality. Simulations and experiments show improvement after
combination; they also indicate that the influence of conjugated combination on optical quality has
compensation and not superposition.
© 2013 Chinese Optics Letters
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