Cynosure Cynergy, Technical Manual

Page: 102 / 194

100 of 112 850-1265-000, Rev. 4 Cynosure, Inc.
Calibrating the Resonator Port, PDL
1. Remove the SMA focusing mount from the rail assembly.
2. Type ‘CV’ from the C:\ prompt.
3. Set laser to the following settings
Wavelength = PDL
CV Voltage = 600
Pulse Width = .5 ms
Rep Rate = 1 Hz
4. Set NOVA II power meter to the following settings:
Laser type = “VIS”
Average = 3 seconds
5. Verify that NOVA II power meter analog out is connected to laser J2.
6. Align the Ophir detector so it is facing toward the beam combiner output within
14 to 16 inches.
7. Fire the laser one shot, and then verify the energy pulse is not clipping on the Ophir
detector head.
8. Set the CV Voltage to approximately 700V.
9. Fire the laser adjusting the laser voltage until the NOVA II power meter reads from
7.5W to 8.5 W. Make note of the NOVAII power meter reading.
10. Make note of the laser voltage setting.
11. Press lowercase ‘d’ to keep the external shutter closed while firing the laser.
12. Set laser resonator gain to 2.
13. Fire the laser six shots and read the resonator voltage from the CV screen.
14. Verify the resonator voltage is from 0.5 to 1.25 volts.
If the resonator voltage is too low, increase the gain number (press uppercase ‘M’).
If the resonator voltage is too high, decrease the gain number (press lowercase ‘m’).
15. Fire the laser six shots again, and read the resonator voltage from the CV screen.
16. Make note of the resonator voltage.
17. Make note of the resonator gain.
18. Press lowercase ‘u’, and then enter the NOVA II power meter reading from step 9.
19. Fire the laser again into the resonator port, and then verify that the resonator energy
measures from 7W to 9W.
20. Press lowercase ‘e’ to return the external shutter to normal function.