Continuum Surelite EX 10, Operation And Maintenance Manual

Page: 44 / 114

Continuum Surelite Laser
34 996-0207
12. Reset voltage using ARROW UP button on front of PCU to original setting (noted in
step 7) and return to continuous operation.
13. Locate the SLT/SLF adjust knob on the side of laser housing assembly and slowly rotate
knob for maximum energy. The knob should not have to be rotated more than one full
turn either clockwise or counter clockwise. Unless it is suspected to be grossly
misadjusted, do not rotate more than one full turn either clockwise or counter clockwise.
14. Locate SLD adjust knob on top of laser housing assembly and slowly rotate knob for
maximum energy. Unless gross misadjustment is suspected, do not rotate more than one
full turn in either direction.
15. Keep repeating steps 12 and 13 until the 355 nm energy has been maximized.
Fourth Harmonic Generation (SLF)
Table 4 Surelite fourth harmonic specification
Quadrupling
266 nm
Surelite I
10
Surelite I
20
SLI
30
Surelite II
10
SLI
20
Surelite lll
10
Surelite EX
10
Energy(mJ) 60 45 30 80 60 100 90
Stability (%) ± 7
Pulsewidth ~1 ns less than input of 1,064 nm
Polarization >95% horiz.
Linewidth(cm-1) 1.0
Performance Parameters at 266 nm:
1. Shut down laser system.
2. Remove housing cover and its cover plate shown on page 32 to allow adjustment knob
of SLT or SLF to seat properly.
3. Locate the second harmonic crystal model SLD-2 and install. See procedure on page 36 .
Note: For maximum 266 nm energy the second harmonic crystal model SLD-2
must be used with the fourth harmonic crystal model SLF. Using the second
harmonic crystal model SLD-1 will lower 266 nm energy by >25%.
4. Locate the fourth harmonic crystal model SLF and install. See procedure on page 37 .
5. Install 266 nm dichroics in Continuum’s optional Surelite Separation Package (SSP).
6. Position the SSP as indicated in Figure 13 on page 24 .
7. Perform Daily Startup procedure with the single shot mode operational. See page 37 .
8. Note voltage reading on front of PCU and then lower lamp voltage (use ARROW
DOWN button) ~200 V to just above lasing threshold.
9. With >OD~4 goggles on, hold a piece of white paper (an index or business card) in
front of the exit port and press the single shot button. A small blue spot should be seen
on the card. The IR will be fluorescent white.