Design and development of a low pumping capacity, compact dc-discharge-excited cw HF chemical laser

P. Theodoropoulos; G. N. Tsikrikas; Z. Kollia; J. Androulakis; Alexander A. Serafetinides

doi:10.1117/12.347594

7 May 1999 Design and development of a low pumping capacity, compact dc-discharge-excited cw HF chemical laser

P. Theodoropoulos, G. N. Tsikrikas, Z. Kollia, J. Androulakis, Alexander A. Serafetinides

Proceedings Volume 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications; (1999) https://doi.org/10.1117/12.347594
Event: 10th International School on Quantum Electronics: Lasers: Physics and Applications, 1998, Varna, Bulgaria

Abstract

The design and development of a compact, low cost, subsonic cw HF chemical laser with expected output power of the order of approximately 100 mWatts that requires less than 5 lt/s pumping capacity is presented. A theoretical estimation of the minimum pumping capacity required in order to obtain an output power of 100 mWatts is given. The laser operates with a He/SF₆/H₂/O₂ gas mixture at an overall pressure of 4 - 8 mbar. A dc electric discharge is used for the SF₆ dissociation. In order to operate at such low gas flow rates the mixing channel dimensions were reduced down to a cross section of 0.2 cm height by 13 cm width. Hydrogen is transversely injected into the flow through approximately 285 holes of 0.03 cm diameter. This low cost compact laser system is suitable for a wide range of experimental requiring mid-infrared cw laser radiation such as laser-tissue interactions and environmental studies.

Citation Download Citation

P. Theodoropoulos, G. N. Tsikrikas, Z. Kollia, J. Androulakis, and Alexander A. Serafetinides "Design and development of a low pumping capacity, compact dc-discharge-excited cw HF chemical laser", Proc. SPIE 3571, Tenth International School on Quantum Electronics: Laser Physics and Applications, (7 May 1999); https://doi.org/10.1117/12.347594

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