Primes MicroSpotMonitor Plus HighBrilliance, Original Instructions Manual

Page: 57 / 116

57 Revision 00 EN - 02/2022
MSM+ HB
35,0(6
9.5 Single planes measurement
In the
Single planes
measuring mode, single planes are measured at selected z-positions. Measurement
window size and exposure can be set automatically or determined freely. You can also have the software
search the laser beam automatically in the entire measurement range.
To measure a custom caustic, several planes can be measured — either individually or by means of a series
measurement. To define the caustic measurement, an increment along the z-axis can be configured.
According to ISO 11146-1, at least 10 planes shall be measured. Approximately half of the measurements
shall be distributed within one Rayleigh length on either side of the focus, and approximately half of them
shall be distributed beyond two Rayleigh lengths from the focus.
By means of the variable integration time control, a large number of pulsed beams can be measured in
quasi-cw operation in addition to cw laser beams. An exception are, for example, laser beams with a very
low pulse frequency. Trigger operation is available for measuring such beams. If this is enabled, the device
only measures within defined time periods. The laser pulse or the corresponding trigger signal marks the
beginning of such a period and the (freely adjustable) integration time marks its end. A measurement can
be triggered internally or externally. Internal signals are triggered by the photodiode integrated in the device.
Externally triggered signals enter the device via a BNC socket. For detailed information on the measurement
of pulsed laser beams and the trigger operation, please refer to chapter 16.3 on page 110.
9.5.1 Configure settings
1. Click on the Settings tab.
2. Maintain the options according to the
explanations in the following table.
Graphic
representation
Measurement window
(thick line)
Measurement range
(thin line)