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Proceedings Paper

Double-pass hybrid resonator for COIL
Author(s): Carsten Pargmann; Thomas Hall; Frank Duschek; Karin M. Grünewald; Jürgen Handke
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Paper Abstract

Based on the experiences made with a negative-branch hybrid resonator (NBHR) a double-pass configuration of the NBHR for a 10 kW class Chemical Oxygen Iodine Laser (COIL) is investigated. Measurements of the intensity distribution of the far field are performed, as well as measurements of the sensitivity against tilts of one of the resonator mirrors. The results are compared to calculations done with the help of the Fresnel-Kirchhoff theory. Enhanced results for divergence, power density in the far field and sensitivity are achieved.

Paper Details

Date Published: 17 April 2009
PDF: 5 pages
Proc. SPIE 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 71310F (17 April 2009); doi: 10.1117/12.816817
Show Author Affiliations
Carsten Pargmann, German Aerospace Ctr. (DLR) (Germany)
Thomas Hall, German Aerospace Ctr. (DLR) (Germany)
Frank Duschek, German Aerospace Ctr. (DLR) (Germany)
Karin M. Grünewald, German Aerospace Ctr. (DLR) (Germany)
Jürgen Handke, German Aerospace Ctr. (DLR) (Germany)


Published in SPIE Proceedings Vol. 7131:
XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Rui Vilar; Olinda Conde; Marta Fajardo; Luís O. Silva; Margarida Pires; Andrei Utkin, Editor(s)

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