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FocusMonitor FM+
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System description
The FocusMonitor measures the beam properties of focused laser beams. In addition to the geometric dimensions
of the focused laser beam, the focus position in space, the beam parameter product as well as the beam quality
factor M² are determined.
The laser beam is scanned along the x-axis with a rotating measuring tip. The integrated horizontal and vertical
carrier moves the measuring tip in the y-axis and z-axis respectively, so that the beam properties of the focused
laser beam can be measured spatially.
This enables the automatic measurement of complete caustics over a z-axis length of 120 mm. In addition,
the mechanical design allows upside down installation without additional components.
The FM+ works with the PRIMES LDS and is equipped with an Ethernet interface for fast and secure data
transfer.
When the FM+ is in operation, the laser radiation that has passed through the measuring zone must be completely
absorbed.
z-axis
Detector
Vertical carrier
Horizontal carrier
Measuring tip
Fig. 4.1:
Main components FM+
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Revision 08 EN - 08/2023
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