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Laser Disks TD 120 pages
Laser Disks TD 12/20/25-7
TD 12-7 HD
TD 20-7
TD 25-7
Material:
Yb:YAG
Yb:YAG
Yb:YAG
Doping concentration:
7%
7%
7%
Thickness:
0.215 mm
0.215 mm
0.215 mm
Shape unpumped:
spherical
spherical
spherical
Radius of curvature:
typically around -10 m, concave;
the disk shape is changed in laser operation mainly due to the bending of the heat sink,
-1
which is convex. The rule of thumb is a change of refractive power of -0,1 m per 100 W for
pump spot diameter of > 4 mm (for pump spots smaller than 4 mm, the change in refractive
power becomes smaller, until it vanishes at a certain pump spot diameter around 2 mm
und becomes positive for even smaller pump spots.
Wedge:
0.1° (between reflected beams),
parallel surface available on request
Free aperture:
diameter 8 mm
diameter 15 mm
AR coating:
R@1030 nm < 0.1 %
HR coating:
R@1030 nm, 0° > 99.9 %
R@940 nm, optimized for use
diameter 20 mm
R@940 nm, optimized for use with TDM 30
with TDM 1.0
Optical axis of the disk:
orthogonal to base +/- 0.5°, depends on wedge orientation
Maximum pump power:
4 kW/cm² for pump spot diameters ≤ 3 mm and 2 kW/cm² for larger pump spot diameters
(with top-hat pump profile and in fluorescence mode only; in laser operation as a rule of
thumb, the damage threshold increases by the actual extracted laser power with respect to
the pump spot area.
Damage threshold:
2
> 4.7 – 7.6 J/cm (10 ns pulses, for 10k pulses, tested by Institute of Technical Physics (DLR),
only tested for HD version)
Suitable pump module
contact
TDM 1.0
TDM 30
TDM 30
phone
+49 (0)711 907060-550
Rotebühlstrasse 87
fax
+49 (0)711 907060-99
70178 Stuttgart
info@dausinger-giesen.de
Germany
internet
www.dausinger-giesen.de
● Dausinger + Giesen GmbH
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