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K-Cube Position Aligner
1) Press the MENU button on the position aligner and select ‘Open Loop’ mode.
2) Adjust the voltage on the piezo drivers until both displays read 37.5 V.
3) Adjust the manual actuators on the turn ing mirror as necessary to position the
laser beam in the detector array.
4) Press the MENU button on the position aligner and select ‘Closed Loop’ mode.
5) The piezos drivers will position the piezo mirror such that the laser beam is held
central within the detector array, i.e. for a 7 5V piezo, the piezo driver displays
37.5V and the TARGET display shows the spot in the center - see Fig. 4.13.
Fig. 4.13 TARGET and VOLTS Displays Showing Values At Mid Position
6) If any positional changes occur, due perhaps to thermal drift, the position aligner
sends a sign al to the pi ezo drivers to reposition the beam such that it is
maintanined in a central position.
Piezo Controller
MENU
Piezo Controller
MENU
V o l t a g e : 3 7 . 5 V
7 5 V N V
V o l t a g e : 3 7 . 5 V
7 5 V N V
Position Aligner
MENU
X + 0 . 0 9 1 + 3 . 1 7 5
Y - 0 . 0 7 6 + 3 . 3 4 2
