THORLABS M2MS, Operating Manual

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BP209 Series 6 The Graphics User Interface (GUI)
Rev: 8.1, 14-Feb-2022 © 2022 Thorlabs Page 29
6.5.2 Beam Profiler Information
Beam Profiler model, serial number, driver, firmware and CPLD versions are read out from the
BP209 Series instrument and cannot be changed. Beside general information, important
sensor information is stated.
Resolution
is the achievable resolution for the given scan rate and aperture width . It's limited by the
sampling rate of the AD converter.
If scanning the entire aperture (9mm), the resolution will be affected only for scan rates > 19 s
-1
.
The range of resolution for these higher scan rates is 1.20 µm to 1.24 µm.
A higher resolution can be achieved by limiting the scanned aperture to 10% of the entire width
(Ø 0.9 mm), see
Miscellaneous . With this option, the resolution depends strongly on the
scan rate and ranges from 0.124 µm (scan rate 2s
-1
) to 1.24 µm (scan rate 20s
-1
).
Samples
is the number of measurement values used for beam profile calculation. It is limited by the AD
converter sampling rate and varies, depending on the selected
aperture width and scan rate.
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