Laser Description
3-15
1
Specifications subject to change without notice and only apply when the Tsunami is pumped by a Spectra-Physics
Millennia X or V diode-pumped CW laser.
2
Specifications apply to operation at the wavelength noted.
3
A sech
2
pulse shape (0.65 deconvolution factor) is used to determine the pulse width as measured with a Spectra-
Physics Model 409 autocorrelator.
4
Pulse width specified at the time of ordering.
5
Laser operation is only specified at a nominal 80 MHz repetition rate.
6
Specification represents rms noise measured in a 10 Hz to 2 MHz bandwidth.
7
Percent power drift in any 2-hour period with less than ±1°C temperature change after 1-hour warm-up.
Table 3-4: Tsunami Picosecond Performance when Pumped by a Millennia Laser
1
710 nm
Blue (B)
790 nm
Standard (S)
850 nm
Mid (M)
900 nm
Long (L)
Average Power
2
with <10 W TEM
00
pump 500 mW 1.3 W 1.3 W 700 mW
pulse width
3
<2 ps <2 ps <2 ps <2 ps
with 5 W TEM
00
pump 400mW1W800mW500mW
pulse width
3
<2 ps <2 ps <2 ps <2 ps
Long Pulse Average Power
2
with <10 W TEM
00
pump 500 mW 1.3 W 1.3 mW 700 mW
pulse width
3,4
30/60 ps 30/60 ps 30/60 ps 30/60 ps
with 5 W TEM
00
pump 400 mW 1 W 800 mW 500 mW
pulse width
3,4
30/60 ps 30/60 ps 30/60 ps 30/60 ps
Tuning Range (nm)
with <10 W TEM
oo
pump 690–800 720–850 780–900 840–1000
with 5 W TEM
00
pump 690–800 720–850 780–900 840–1000
Repetition Rate (nominal)
5
80 MHz
Noise
6
<0.5%
Stability <5%
Spatial Mode TEM
00
Beam Diameter at 1/e2 points <2 mm
Beam Divergence, full angle <.06 mrad
Polarization >500:1 vertical