31 March 1995 Parametric studies of a small-scale supersonic chemical oxygen-iodine laser (COIL)
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Proceedings Volume 2502, Gas Flow and Chemical Lasers: Tenth International Symposium; (1995); doi: 10.1117/12.204918
Event: Gas Flow and Chemical Lasers: Tenth International Symposium, 1994, Friedrichshafen, Germany
Abstract
Parametric studies of the gain and the power of a small scale supersonic chemical oxygen- iodine laser are presented. The laser is of 5 cm long active medium, and utilizes a simple sparger-type O2(1(Delta) ) chemical generator and a medium size pumping system. A grid nozzle is used for iodine injection and supersonic expansion. 45 W of CW laser emission at 1315 nm are obtained in the present experiments. The small size and the simple structure of the laser system and its stable operation for long periods make it a convenient tool for studying parameters important for high power supersonic iodine lasers and for comparison to model calculations. The gain and the lasing power are studied as a function of the molar flow rates of the various reagents, and conditions are found for optimal operation. Good agreement is found between the experimental results and calculations based on a simple 1D semi-empirical model, previously developed in our laboratory and modified in the present work. The model is used to predict optimal values for parameters affecting the laser performance that are difficult to examine in the present experimental system.
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Salman Rosenwaks, Boris D. Barmashenko, A. Elior, Eyal Lebiush, I. Blyvas, "Parametric studies of a small-scale supersonic chemical oxygen-iodine laser (COIL)", Proc. SPIE 2502, Gas Flow and Chemical Lasers: Tenth International Symposium, (31 March 1995); doi: 10.1117/12.204918; https://doi.org/10.1117/12.204918
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KEYWORDS
Iodine

Chemical lasers

Oxygen

Chemical oxygen iodine lasers

Helium

Chlorine

High power lasers

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