THORLABS WFS150, Operation Manual

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76 WFS150 / WFS150C Manual
© <2007> ... Thorlabs GmbH
feasible. The highest number of Zernike modes must not exceed the amount of
detected spots within the pupil.
Highest order in Fourier and Optometric calculations
This control can be set to 2, 4 or 6 and forces the numerical calculation of the
Fourier coefficients M, J0 and J45 as well as the Optometric parameters Sphere,
Cylinder and Axis to consider Zernike terms up to the desired order.
Mode selection for wavefront reconstruction
This table provides a list of all calculated Zernike coefficients each listed in a row.
The number of rows is determined by the '
Fit up to Zernike Order' control.
The check box at the left side determines whether this mode should be used for
the reconstruction of the wavefront or not. For instance, to see the reconstructed
wavefront without primitive modes piston, tip and tilt (which often dominate the 3D
graphic) use the following setting:
On the other side, in order to focus on a single or a few modes that describe the
aberration best, click on '
Select none ' and than mark the modes of interest. To
focus on third order (n = 3) aberrations, do the following selection: