Fourth Harmonic Generation (Slf) - Continuum Surelite I 10 Operation And Maintenance Manual

Continuum Surelite Laser
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 Surelite I
266 nm 10
Energy(mJ) 60
Stability (%)
Pulsewidth
Polarization
Linewidth(cm-1)
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.
34
Surelite I SLI Surelite II
20 30
45 30
~1 ns less than input of 1,064 nm
>95% horiz.
SLI Surelite lll
10 20
80 60
± 7
1.0
996-0207
Surelite EX
10 10
100 90