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Proceedings Paper

Status report of the Asterix IV high-power iodine laser
Author(s): H. Baumhacker; Guenter Brederlow; Ernst E. Fill; H. Schillinger; Christian Schroedter; Reinhard Volk; Siegbert Witkowski; Klaus-Juergen Witte
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Paper Abstract

The Asterix IV high power iodine laser was projected to deliver output pulse energies of up to 2 kJ at pulse lengths tp >= 1 ns in one beam. Using a mode-locked or a long-pulse oscillator the pulse duration can be adjusted in the range between 0.1 and 3 ns. In addition, in the fundamental wavelength at 1315 nm the laser can be operated at either the second or third harmonic at (lambda) equals 658 nm and (lambda) equals 438 nm, respectively. Up to now a maximum output energy of 1.3 kJ could be extracted which was -- at tp equals 0.4 ns -- limited only by the damage threshold of optical components. Emphasis has been put on improving the laser performance; e.g., the energy density of the top hat beam profile shows a modulation as small as +/- 6% and the output pulse energy can be kept stable within +/- 4% during a period of several months. Since 1988 the laser has been used for 3000 target shots and it has proved a reliable tool.

Paper Details

Date Published: 23 April 1993
PDF: 10 pages
Proc. SPIE 1980, Iodine Lasers and Applications, (23 April 1993);
Show Author Affiliations
H. Baumhacker, Max-Planck-Institut fuer Quantenoptik (Germany)
Guenter Brederlow, Max-Planck-Institut fuer Quantenoptik (Germany)
Ernst E. Fill, Max-Planck-Institut fuer Quantenoptik (Germany)
H. Schillinger, Max-Planck-Institut fuer Quantenoptik (Germany)
Christian Schroedter, Fachhochschule Heilbronn (Germany)
Reinhard Volk, Max-Planck-Institut fuer Quantenoptik (Germany)
Siegbert Witkowski, Max-Planck-Institut fuer Quantenoptik (Germany)
Klaus-Juergen Witte, Max-Planck-Institut fuer Quantenoptik (Germany)

Published in SPIE Proceedings Vol. 1980:
Iodine Lasers and Applications
Milos Chvojka; Jarmila Kodymova; Bozena Kralikova, Editor(s)

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