
Proceedings Paper
Pulsed Yb:YAG thin disk laser with 100 W at 515 nmFormat | Member Price | Non-Member Price |
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Paper Abstract
Pulsed lasers with high average output power in the green spectral range are of interest for laser annealing applications.
In this paper an efficient pulsed diode-pumped Yb:YAG thin disk laser with intracavity frequency doubling is
presented. The Yb:YAG laser crystal disk has a thickness of 180 &mgr;m and a diameter of 10 mm and is pumped by a laser
diode stack at a wavelength of 938 nm. The disk is soldered to a water-cooled Cu-W heat sink and exhibits a nearly
perfect spherical surface. The folded resonator is dynamically stable with a beam factor of M2 = 5 and which is matched
to the requirements of the application. Acousto-optical and electro-optical switches are investigated to operate the laser
in the cavity-dumping mode. An average output power of 150 W at 515 nm is achieved. The diode-to-green efficiency
is about 28%. A critically phase matched LBO crystal is used for intracavity second harmonic generation. We show that
stable pulsing is obtained from 10 kHz to 150 kHz. The pulse-width can be varied from 200 ns to 700 ns by control of
the low-loss period of the switching element. The experimental results are compared with theoretical modeling of the
system and first application results are discussed.
Paper Details
Date Published: 19 February 2007
PDF: 7 pages
Proc. SPIE 6451, Solid State Lasers XVI: Technology and Devices, 64510D (19 February 2007); doi: 10.1117/12.709548
Published in SPIE Proceedings Vol. 6451:
Solid State Lasers XVI: Technology and Devices
Hanna J. Hoffman; Ramesh K. Shori; Norman Hodgson, Editor(s)
PDF: 7 pages
Proc. SPIE 6451, Solid State Lasers XVI: Technology and Devices, 64510D (19 February 2007); doi: 10.1117/12.709548
Show Author Affiliations
G. Hollemann, JENOPTIK Laser, Optik, Systeme GmbH (Germany)
P. Heist, JENOPTIK Laser, Optik, Systeme GmbH (Germany)
S. Heinitz, JENOPTIK Laser, Optik, Systeme GmbH (Germany)
J. Symanowski, JENOPTIK Laser, Optik, Systeme GmbH (Germany)
P. Heist, JENOPTIK Laser, Optik, Systeme GmbH (Germany)
S. Heinitz, JENOPTIK Laser, Optik, Systeme GmbH (Germany)
J. Symanowski, JENOPTIK Laser, Optik, Systeme GmbH (Germany)
T. Eidam, JENOPTIK Laser, Optik, Systeme GmbH (Germany)
C. Stolzenburg, Univ. Stuttgart (Germany)
A. Giesen, Univ. Stuttgart (Germany)
C. Stolzenburg, Univ. Stuttgart (Germany)
A. Giesen, Univ. Stuttgart (Germany)
Published in SPIE Proceedings Vol. 6451:
Solid State Lasers XVI: Technology and Devices
Hanna J. Hoffman; Ramesh K. Shori; Norman Hodgson, Editor(s)
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