Lasers

Waveguide CO₂ laser with combined excitation by dc and transverse rf capacitance discharges

A. F. Maksimenko, A. S. Provorov, M. Yu. Reushev, S. A. Fen'

Krasnoyarsk State University

Abstract: An investigation was made of a waveguide CO₂ laser excited by a combination of a high-voltage longitudinal dc discharge and a transverse rf capacitance discharge. The combined discharge filled more homogeneously the discharge channel with a plasma than did the dc and rf discharges separately. The dependences of the laser radiation power on the direct current were determined. The current-voltage characteristics were obtained for different values of the rf power. For certain ratios of the contributions of the dc and rf discharges, the former acquired the properties of a non-self-sustained discharge. A qualitative analysis of the effect was made.

PACS: 42.5S.Lt, 42.79.Gn

Received: 14.01.1994

 English version: Quantum Electronics, 1994, 24:9, 769–770

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