Primes CUBE - Laser Parameter Setting; 11.2.1 Setting the Laser Rise Time

35,0(6
Cube
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Revision 01/2019 EN
11.2 Laser parameter setting
11.2.1 Setting the laser rise time
The applicable measurement time is between 0.1s and 2.0s, which has to be trans-
ferred to the laser controller as pulse length. The maximum laser rise time for measur-
ing the power cannot exceed 100µs. This limit has to be adhered to in order to avoid
incorrect results of the power measurement.
Some laser beam sources are factory set with power ramps of up to a few 100ms to
switch on the laser beam. To achieve the correct power values the shortest possible rise
time (<100μs) has to be set.
P
Max
P
Meas
t
t
p
t
0
P
100µs
Fig. 11.1: Laser rise time >100µs
P
Max
≙ P
Meas
t
t
p
t
0
P
100µs
Fig. 11.2: Laser rise time <100µs