Third Harmonic Generation (Slt) - Continuum Surelite I 10 Operation And Maintenance Manual

9. Steer the 532 nm separated from the 532 nm/1,064 nm into a volume absorbing power
meter set on the 3 watt scale.
10. Reset voltage to the original setting by using the
ARROW UP button on front of the PCU (step 6) and
return to continuous operation.
11. Locate the SLD adjust knob on the top of laser
housing assembly and slowly rotate knob for maximum
energy. Unless it is suspected to be grossly misadjusted,
do not rotate more than one full turn in either
direction.

Third Harmonic Generation (SLT)

Table 3 Surelite third harmonic specification
Tripling Surelite I
355 nm 10
Energy (mJ) 65/100
Stability
Pulsewidth
Polarization
Linewidth
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-1 and install. See procedure on page 36.
Note: For maximum 355 nm energy, the second harmonic crystal model SLD-1
must be used with the third harmonic crystal model SLT. Using the second harmonic
crystal model SLD-2 will lower 355 nm energy by >25%.
4. Locate the third harmonic crystal model SLT and install. See procedure on 37.
5. Install 355 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 27.
8. Note voltage reading on front of PCU and then lower lamp voltage (use ARROW
DOWN button) ~ 200V 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.
10. Position the SSP so that the 355 nm and the IR fall cleanly on their respective mirror
surfaces with no clipping. See Figure 15 on page 35.
11. Steer the 355 nm separated from the 532 nm/1,064 nm into a volume absorbing power
meter set on the 3 Watt scale.
996-0207
Surelite I Surelite I
20 30
60/100 25/70
≈ 1ns < input of 1,064 nm
>95% horizonal
≈ 1.5 x linewidth of 1,064 nm
Section 3: System Operation
Surelite II Surelite II
10 20
100/160 70/120
± 4.0
Surelite III Surelite EX
10 10
165/225 125/220
33