Cynosure Cynergy, Technical Manual

Page: 74 / 194

72 of 112 850-1265-000, Rev. 4 Cynosure, Inc.
Resonator Alignment Procedure, YAG
NOTE: The YAG resonator uses only one external laser optic, the maximum reflector.
1. Before aligning, inspect the rod and maximum reflector for damage.
2. Remove the fiber block.
WARNING: High voltage, hazardous high temperatures and rotating fan blades are
exposed when the panels are off, and laser is running. Exercise extreme caution when
operating the laser. Always wear appropriate laser safety glasses when operating the
laser systems.
3. Initiate ‘CV’ mode. In CV mode, the voltage is changed by the up/down arrows, not
fluence.
4.
Position the Ophir energy detector head approximately 18" from the YAG resonator
chamber. Align the energy detector so it is facing towards the resonator output.
Set: NOVA II meter Set: LASER
Menu = Power(Watts) Voltage = 350 V
Range = Auto Pulse width = 5 ms
Average = 1-second Rep rate = 1 Hz
Laser wavelength = 1064
5. Center a piece of laser alignment paper in front of the energy detector disk. Fire a single
shot into the paper. Verify the burn on the energy detector disk. Reposition the energy
detector if necessary so that the burn pattern on the paper is centered on the energy
detector disk.
6. Press and hold down the footswitch to fire the laser, while adjusting the three max
reflector adjustment screws for a maximum reading on the energy/power meter.
7. Release the foot switch.
8. Examine the burn pattern. It should be circular with sharp edges.
9. Adjust the YAG max reflector to optimize the quality of the burn, on the burn paper.
10. Power should be between 3 to 7 watts when the burn is symmetric and uniform. There
should be no internal structure, such as rings or spots.
11. Fire a single shot on an unexposed area of the burn paper after each adjustment until
proper exposure is obtained.