Table 1.
RMS wavefront aberrations of the different phases of Fig. 10, in radians at λ = 638 nm, computed in the Lyot stop only.
| Freq (cy/pup) | Theory (rad) | Reconstruction (rad) | Difference (rad) |
|---|---|---|---|
| 2 | 0.24 | 0.092 | 0.26 |
| 3.5 | 0.24 | 0.26 | 0.29 |
| 15 | 0.24 | 0.24 | 0.0038 |
Notes. For each frequency (2, 3.5, and 15 cycles per pupil), the RMS values of the theoretical phase, the phase reconstructed by COFFEE, and the reconstruction error (Diff) are given. The frequencies are indicated in cycles per pupil. We notice that the reconstruction error in the case of 15 cycles per pupil indicates that only this aberration is well reconstructed.
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