Operating Instruction; Attenuation Correction; Wavelength Correction - THORLABS PM200 Quick Reference

3

Operating Instruction

3.1

Attenuation Correction

The attenuation menu can be used to apply an additional, external related
correction factor to the power or energy reading (e.g. filter). The handling is
similar to the wavelength correction, it is possible to create a list with dedicated
attenuation items in dB or loading complete spectral transmission curves in
comma separated format.
Note
Attenuation must be entered always as a positive value, e.g., (+)10dB. The
software allows to enter negative values as well,but this would be equivalent to an
amplification
.
Note
If the attenuation curve e.g. of a filter is loaded and selected, it can be easily
displayed in the 'Sensor' panel. Comparing the graphics in tab 'curve' with the tab
'eff. curve', the superposition of the sensor's response curve and the filter curve
can be seen.
3.2

Wavelength Correction

The PM200 allows the creating and administering of a nearly unlimited number of
user wavelengths and spectral curves of light sources that will be used for
calculating the spectrally corrected power or energy value.
By clicking to the wavelength value, a drop down list appears with saved
wavelength value. The menu item ("Edit...") opens the editor panel. The editor
panel instantly appears when clicking to the Wavelength button:
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