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

Dimitris N. Papadopoulos; D. Mandridis; A. Orfanoudakis; Alexander A. Serafetinides

doi:10.1117/12.611019

23 March 2005 Development of a compact TEA HF oscillator-double-amplifier laser system with corona preionization suitable for medical applications

Dimitris N. Papadopoulos, D. Mandridis, A. Orfanoudakis, Alexander A. Serafetinides

Author Affiliations +

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611019
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

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 g_o and the saturation energy density E_s 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.

Citation Download Citation

Dimitris N. Papadopoulos, D. Mandridis, A. Orfanoudakis, and Alexander A. Serafetinides "Development of a compact TEA HF oscillator-double-amplifier laser system with corona preionization suitable for medical applications", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611019

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