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Proceedings Paper

COIL performance modeling and recent advances in diagnostic measurements
Author(s): Keith A. Truesdell; Charles A. Helms; S. Frerking; Gordon D. Hager; David N. Plummer; Richard J. Copland
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Paper Abstract

This paper describes the analysis of power extraction from a chemical oxygen iodine laser (COIL) using a simplified saturation model (SSM). Previously our COIL modeling efforts have been limited by an inability to accurately measure O2(1(Delta) ) concentrations which in turn is a measure of the power available in the laser. Earlier application of the SSM to RotoCOIL data implied that our measured O2(1(Delta) ) could not be correct. In this paper we show how a new method for experimentally inferring O2(1(Delta) ) by measuring O2(3(Sigma) ) leads to better agreement between experiment and theory. These results strongly imply that if a COIL model is anchored to literature O2(1(Delta) ) measurements, caution needs to be applied when using the model for predicting performance.

Paper Details

Date Published: 4 April 1997
PDF: 6 pages
Proc. SPIE 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (4 April 1997); doi: 10.1117/12.270162
Show Author Affiliations
Keith A. Truesdell, U.S.Phillips Lab. (United States)
Charles A. Helms, Air Force Phillips Lab. (United States)
S. Frerking, Phillips Lab. (United States)
Gordon D. Hager, Air Force Phillips Lab. (United States)
David N. Plummer, Logicon R&D Associates (United States)
Richard J. Copland, Logicon RDA (United States)

Published in SPIE Proceedings Vol. 3092:
XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Denis R. Hall; Howard J. Baker, Editor(s)

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