Abstract
A systematic pressure-current experimental study of the wave instability regions in glow-discharge of different CO2 laser mixtures has been accomplished. The forward ionization wave F− has been found to be the main instability. At low currents (< 30 mA) and higher pressures (> 550 Pa) the laser discharge becomes stable. The highest output power at a given mixture ratio was achieved in these quiet regions. The normalized electric field dependences of wavenumber, phase and group velocities of the F− wave are presented.
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Urbánková, H., Chvojka, M. & Skála, J. Systematic experimental study of instabilities in the sealed CO2 laser. Czech J Phys 31, 1070–1083 (1981). https://doi.org/10.1007/BF01604772
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DOI: https://doi.org/10.1007/BF01604772