TD 120 pages

Laser Disk TD 12-7-HD

General specificiations
Material:

Yb:YAG

Doping concentration:

7%

Thickness:

0.215 mm

Shape unpumped:

spherical

Radius of curvature:

typically >10 m, concave;
the exact value is in the data sheet of the laser disk

Wedge:

0.1° (between reflected beams),
parallel surface available on request

Free aperture:

diameter 8 mm

AR coating:

R@1030 nm < 0.1 %

HR coating:

R@1030 nm, 0° > 99.9 %
R@940 nm is optimized for using with TDM 1.0

Optical axis of the disk:

orthogonal to base +/- 0.5°, depends on wedge orientation

Damage threshold (HD):

> 4.7 – 7.6 J/cm (10 ns pulses, for 10k pulses, tested by Institute of Technical Physics (DLR))

2

Technical information
Laser disk is soldered on a heat sink made of gold plated copper-tungsten to
provide mechanical stiffness and thermal contact. Water nozzle of TDM 1.0
rinses the bottom surface of the heat sink and provides impingement cooling.
Water is sealed with a D 11 mm x 1 mm O-ring. The heat sink is fixed with three
M2 x 5 mm screws.
Each disk is tested in laser operation in a multimode as well as in a fundamental
mode cavity before delivery. The size of the pump spot is typically chosen to
match the desired application. Per default a diameter of 3 mm is used. The
maximum pump spot diameter can be smaller than theoretically possible (6 mm)
due to interface imperfections and is matched to customer requirements.

A data sheet is provided for each disk comprising the following information:
-

Two radii of curvature measured interferometrically w/o laser operation for two orthogonal planes

-

contact

Doping concentration, thickness, wedge, free aperture, max. recommended pump spot diameter, serial number

Test results for fluorescence, multimode, and fundamental mode operation (if applicable)

phone

+49 (0)711 907060-550

Rotebühlstrasse 87

fax

+49 (0)711 907060-99

70178 Stuttgart

email

info@dausinger-giesen.de

Germany

internet

www.dausinger-giesen.de

● Dausinger + Giesen GmbH