Improvement of discharge pumping for pulsed high-pressure gas lasers

Alexei A. Velikin; Imar I. Galaktionov; Sergei N. Belov; Michael A. Kanatenko; Ivan V. Podmoshensky

doi:10.1117/12.20567

1 October 1990 Improvement of discharge pumping for pulsed high-pressure gas lasers

Alexei A. Velikin, Imar I. Galaktionov, Sergei N. Belov, Michael A. Kanatenko, Ivan V. Podmoshensky

Proceedings Volume 1276, CO2 Lasers and Applications II; (1990) https://doi.org/10.1117/12.20567
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

This paper presents an upgrading technique using anisotropic-resistive (AR) electrodes and radionucide pre-ionization for discharge pumping of pulsed high-pressure gas lasers. Plutonium-238, polonium-210 and krypton-85 radionucide alpha and beta radiation sources were effectivelyused for pre-ionization in the volumetric discharge setup. These sources feature high stability, versatility and simplicity as compared to traditional UV irradiation and electron beam ionization techniques. The use of AR electrodes makes it possible to suppress efficiently electrode instabilities in volumetric discharges with various power modes of operation and to increase energy input in an active medium by a factor of 2-3 due to extended discharge duration in the volumetric phase. With the use of the AR cathode as an alternative to a metal one, a commercially available photo-ionization 2 laser gained two-fold increase in generation energy. It also showed a stable operation of the volumetric discharge in Ar, Kr, Xe mixtures with He at atmospheric pressure and allowed us to obtain generation in An, Kr!, Xe! spectral lines.

Citation Download Citation

Alexei A. Velikin, Imar I. Galaktionov, Sergei N. Belov, Michael A. Kanatenko, and Ivan V. Podmoshensky "Improvement of discharge pumping for pulsed high-pressure gas lasers", Proc. SPIE 1276, CO2 Lasers and Applications II, (1 October 1990); https://doi.org/10.1117/12.20567

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