Correlations between laser performance and discharge dynamic in a photo-triggered HF laser

S. Pasquiers; Laurent Richeboeuf; F. Doussiet; M. Legentil; C. Postel; Vincent Puech

doi:10.1117/12.270118

4 April 1997 Correlations between laser performance and discharge dynamic in a photo-triggered HF laser

S. Pasquiers, Laurent Richeboeuf, F. Doussiet, M. Legentil, C. Postel, Vincent Puech

Proceedings Volume 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (1997) https://doi.org/10.1117/12.270118
Event: XI International Symposium on Gas Flow and Chemical Lasers and High Power Laser Conference, 1996, Edinburgh, United Kingdom

Abstract

The non-chain reaction HF laser energized by an x-ray photo- triggered discharge has been studied for Ne/SF₆/C₂H₆ and Ne/SF₆/H₂ gas mixtures. For an active volume of 312 cm³, a high specific output energy of 10 J/l has been reached with an electric efficiency of 4.7% for the mixture with ethane, whereas only 6 J/l is obtained with an efficiency of 3.1% for the mixture with hydrogen. It is shown that discharge instabilities are responsible for the laser emission disruption in the case of the H₂-mixture. However, addition of C₂H₆ to Ne/SF₆, in place of H₂, induces the discharge stabilization. The higher laser performance obtained with the C₂H₆-mixture, compared with the performance of the H₂-mixture, is a direct consequence of this stabilization effect.

Citation Download Citation

S. Pasquiers, Laurent Richeboeuf, F. Doussiet, M. Legentil, C. Postel, and Vincent Puech "Correlations between laser performance and discharge dynamic in a photo-triggered HF laser", Proc. SPIE 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (4 April 1997); https://doi.org/10.1117/12.270118

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