THORLABS M2MS, Operating Manual

Page: 93 / 167

BP209 Series 7 Operation Instructions
Rev: 8.1, 14-Feb-2022 © 2022 Thorlabs Page 91
Explanation of indicators and icons
Start the Alignment Wizard
Start the Focusing Lens Alignment Wizard
Z [mm] This box shows the actual stage position; after initialization = 200 mm.
Position 1 (2) [mm] The left and right positions for the stage movement can be entered nu-
merically.
Markers for left and right positions. Instead of numerical entry of the
marker positions, the markers can be moved by drag-and-drop.
When clicking these capture buttons, the stage moves to the related po-
sition, if not there yet, and captures the beam centroid position (amber
crosshair). This snapshot will remain until the stage returns to the appro-
priate position.
This button starts the stage loop movement mode and the stage moves
continuously between positions 1 and 2. A dwell time at the end positions
can be entered. During the loop mode, the software automatically cap-
tures the beam centroids (yellow cross hair) at the left and right stop.
Dwell Time Enter the desired time [sec]. Disable the dwelling by clicking to the
icon.
Centroid crosshair of the actual beam position.
Crosshair of the sensor center
Beam Displacement Centroid shift in X (Y) direction between position 2 and 1 [mm]. The box
is initially filled after the 2nd capture.
Pointing Angle The angle [°] in X (Y) direction between the beam axis and the stage
movement direction. The box is initially filled after the 2nd capture.
Alignment Success
Indicator
Alignment not successful
Alignment sufficient for correct Beam Quality Measurement (dis-
placement < 0.65 mm, angle < 0.35°)
Good alignment (displacement < 0.35 mm, angle < 0.15°)
AD Saturation Displays the current saturation of the Beam Profiler's AD converter. For
proper beam alignment function the value must be 40 to 95 %. The
green bulb to the right of the numeric field indicates the "GOOD" range.
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