HF repetitively pulsed chemical laser with a large discharge gap operating on the mixture F2 and H2

Boris S. Alexandrov; Evgueni Alexandrovitch Klimuk; Constantin Alexandrovitch Kutumov; Bernard Lacour; Vincent Puech; Georgiy A. Troshchinenko

doi:10.1117/12.611014

23 March 2005 HF repetitively pulsed chemical laser with a large discharge gap operating on the mixture F₂ + H₂

Boris S. Alexandrov, Evgueni Alexandrovitch Klimuk, Constantin Alexandrovitch Kutumov, Bernard Lacour, Vincent Puech, Georgiy A. Troshchinenko

Author Affiliations +

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611014
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

The efficient repetitively pulsed (10 Hz) HF chemical laser initiated by barrier electric discharge with electrode gap 10 cm was realised. In mono-pulse mode specific output energy 3 and 23 J/l, technical efficiency (η) 3.4 and 26%, for non-chain and chain process, correspondingly, were obtained. In the repetitively pulsed (RP) mode of the laser operation at 10 Hz on the depleted fluorine-hydrogen mixture (20% F₂, 5% H₂) the mean laser power of 43 W was obtained (specific output energy E/V ~ 10 J/l, η=11.3%). The computational prediction for laser operation in repetitively pulsed mode at active length of about 0.5 m has shown the possibility of achievement of the specific laser energy about 15 J/l and technical efficiency up to 20%. Output laser specific energy ~ 14 J/l under RPCL conditions at length of active medium 0.37 m in mono-pulse mode was obtained in a good agreement with numerical prediction.

Citation Download Citation

Boris S. Alexandrov, Evgueni Alexandrovitch Klimuk, Constantin Alexandrovitch Kutumov, Bernard Lacour, Vincent Puech, and Georgiy A. Troshchinenko "HF repetitively pulsed chemical laser with a large discharge gap operating on the mixture F₂ + H₂", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611014

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