THORLABS WFS20-14AR, Operation Manual

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Wavefront Sensor
5.6.1 Available Data Items
With the activated ' Enable basic data ' option in the DataSocket configuration panel, the follow-
ing data items from the actual Wavefront Sensor measurement are sent to the DataSocket
server. As soon as a measurement is completed, the data on the DataSocket server are up-
dated.
Measurement results in 'float' format may contain the coding 'NaN' which stands for 'Not A
Number'. This indicates that the parameter is not available. Data are split in two groups: Wave-
front Sensor settings and measurement results.
Wavefront Sensor settings are:
Data Item Format Unit / example
Instrument_Name string e.g. "WFS30-5C Wavefront Sensor"
Serial_Number string e.g. "M00224955"
Wavelength float e.g. "633.000"
Wavefront_Unit_Um_Waves short 0 = µm, 1 = waves
Wavefront_Data_EntireArea_Pupil short data relate to 0 = entire area, 1 = pupil
Wavefront_Type_Meas_Recon_Diff short 0 = measured, 1 = reconstructed, 2 = difference
Zernike_Orders short number of Zernike orders
Zernike_Modes short number of Zernike modes
Wavefront Sensor results are:
Data Item Format Unit / example
Beam_Center_X float [mm]
Beam_Center_Y float [mm]
Beam_Diameter_X float [mm]
Beam_Diameter_Y float [mm]
Wavefront_PV float (unit according to Wavefront_Unit_Um_Waves)
Wavefront_RMS float (unit according to Wavefront_Unit_Um_Waves)
Wavefront_wRMS float (unit according to Wavefront_Unit_Um_Waves)
Fourier_M float
Fourier_J0 float
Fourier_J45 float
Optometric_Sphere float
Optometric_Cylinder float
Optometric_Axis float [deg]
RoC_mm float [mm]
Wavefront_Variations float array (unit according to Wavefront_Unit_Um_Waves)
Zernike float array (unit according to Wavefront_Unit_Um_Waves)
Fit_Error_Mean_Arcmin float arcmin
Fit_Error_StdDev_Arcmin float arcmin