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Proceedings Paper

Development of a compact TEA HF oscillator-double-amplifier laser system with corona preionization suitable for medical applications
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Paper Abstract

The development of a TEA HF (SF6:C3H8:He) oscillator-double amplifier laser system with one common switching element and one common power supply unit is presented. All three cavities employ the conventional charge transfer excitation circuit and the surface corona discharge preionization scheme. For each amplifier the small signal gain coefficient go and the saturation energy density Es are determined and their dependence on the charging voltage and the active gas concentrations is investigated. The performance characteristics of the laser system i.e. maximum output energy, pulse duration, spectral and beam profile evolution through all three stages of the system are given. Additionally, beam propagation measurements through a 150cm long, 250μm core diameter GeO2 mid-IR fiber are presented.

Paper Details

Date Published: 23 March 2005
PDF: 4 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.611019
Show Author Affiliations
Dimitris N. Papadopoulos, National Technical Univ. of Athens (Greece)
D. Mandridis, National Technical Univ. of Athens (Greece)
A. Orfanoudakis, National Technical Univ. of Athens (Greece)
Alexander A. Serafetinides, National Technical Univ. of Athens (Greece)


Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

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