Gentec-EO S-LINK - Manual (Page 53)

S- LINK User’s Manual Revision 2.4 48
Step 4: Install the attenuator. Without changing the laser settings, measure the energy level by
averaging the same number of shots. All laser settings must be the same as Step 3 (including beam size
and position on the detector).
Step 5: Repeat the first measurement (Step 3) to make sure that nothing has changed during the
procedure to invalidate the calibration. A change larger than the uncertainty of your measurements
means that something has changed in the laser or in the environment. Add this to your ± uncertainty
when you use the attenuator or try to stabilize the laser and the environment. Go back to Step 3.
The correction multiplier for the S-Link and an Oscilloscope is calculated:
attenuator with Reading
attenuator without Reading

f
T (no unit)
Use this calibr ation factor for the “Attenuator/Diffuser” at the wavelength established in Step 1.