Align The Optics - Keysight HeNe 5519A User Manual

Align the Optics

Follow these steps to align the optics with the laser beam path and with each
other:
1
1 Turret Ring set to "Other"
2 Upper Aperture Control
3 Upper port
4 Lower Port
5 Lower Aperture Control
Figure 13. Set the Laser Output for Linear Measurement
2
3
4
NO TE
5
Keysight 5519A and 5519B User's Guide
Set the turret ring on the laser to "OTHER" (Figure 13).
2
4
Rotate the laser's aperture control for the upper port to the small aperture.
Rotate the laser's target into position over the lower port by turning the lower
aperture control.
Pass your finger between the interferometer assembly and retroreflector.
One of the alignment dots on the laser should flicker. You are interrupting
the retroreflector return beam. The other beam is the interferometer
assembly return beam.
You may need to adjust the height of the interferometer and or the reflector
to see both return beams on the target in the lower port on the laser.
Adjust the interferometer assembly's position so that its return beam is
centered on the laser's target in the lower port.
4 Using Keysight 5519A/B with the 5530 Laser Calibration System
LASER ON
AVOID EXPOSURE LASER RADIATION
IS EMITTED FROM THIS APERTURE
EXPOSITION DANGEREUSE UN RAYONNEMENT
LASER EST EMIS PAR CETTE OUVERTURE
OTHER
STRAIGHT
5
SIGNAL
1
3
33