Cynosure Cynergy, Technical Manual

Page: 75 / 194

Cynergy Technical Guide 850-1265-000, Rev. 4 73 of 112
Resonator Optics Inspection/Replacement Procedure, YAG
NOTE: This section applies to the YAG lasers only.
1. Inspect the maximum reflector carefully for burns or other degradation. Use a flashlight
and compressed air to aid in the inspection. If any damage is noted, remove the optic with
the mount and clean it.
2. Clean the optic carefully using methanol and a lens tissue or cotton swab. If the optic
cannot be cleaned, replace it. Be sure to follow the sequence of reassembly outlined in
the break-out illustrations.
3. Install the optic with the mount, and then verify alignment. Align the resonator if
necessary.
4. When making energy measurements, the entire beam profile must fill at least 75% of the
detector area. Take a burn to confirm the size of the beam, and to confirm that it is
centered on the detector face.
CAUTION: Be sure that the burn paper is inside a plastic bag to prevent any burn
residue and smoke from depositing on the laser rod or other optics.
5. Inspect both surfaces of the rod using at least a 7x eye loupe for scratches, pinholes,
burns, etc. If there is any problem with the rod, note the location and severity of damage
on the service report.
6. If dirt is present, clean the end of the rod very carefully as detailed in the steps below.
Use only optics grade methanol, or acetone for heavy-duty spots, and tightly wound
cotton swabs. Make certain that the cotton swabs do not contain an adhesive.
7. Soak the end of cotton swab with methanol.
8. Shake off any excess methanol from the swab.
9. Using light pressure, move the swab in a circular motion starting in the middle of the rod,
and then gradually working outward to the edge of the rod.
10. Dispose of the swab when finished.
11. Reinspect the rod, and repeat as necessary.
NOTE : Use a new cotton swab each time the rod surface cleaning is repeated.