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Table 2.
Comparison of the long-exposure (LE) Strehl ratio between the following cases of the AO loop: no NCPAs, NCPAs alone, and post-DrWHO with the NCPAs.
| No NCPAs | With NCPAs | With DrWHO | |
|---|---|---|---|
| SR LE (%) | 87.9 | 86.8 | 87.7 |
| σOPD (nm rms) | 94.3 | 98.8 | 95.1 |
Notes. The second line corresponds to the rms of the wavefront for each of those cases, calculated from the SR of the line above with the Maréchal approximation.
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