Comparative studies on small signal gain and output power for COIL systems

Juergen Handke; Karin M. Gruenewald; Frank R. Duschek

doi:10.1117/12.413972

25 January 2001 Comparative studies on small signal gain and output power for COIL systems

Juergen Handke, Karin M. Gruenewald, Frank R. Duschek

Proceedings Volume 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (2001) https://doi.org/10.1117/12.413972
Event: XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, 2000, Florence, Italy

Abstract

In the 10-kW chemical oxygen-iodine laser (COIL) of DLR, the small signal gain and the laser output power were measured for identical gas flow conditions. The comparison of both results is used to elaborate the expressiveness of small signal gain for COIL laser design. For these investigations the temporal and spatial dependencies of small signal gain and laser power are measured along the flow axis of the cavity. The measurement of small signal gain is perlonned by a commercial diagnostic system of PSI with a software package upgraded by the Air Force Research Lab of Kirtland, U.S.A. 1,2,3,4 The laser power is extracted in a stable resonator configuration. In case of spatially resolved investigations, slit apertures of 6 mm width in flow direction are integrated in the cavity.

Citation Download Citation

Juergen Handke, Karin M. Gruenewald, and Frank R. Duschek "Comparative studies on small signal gain and output power for COIL systems", Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); https://doi.org/10.1117/12.413972

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