Influence of a radial inhomogeneity of the active medium on the output radiation power from a cw CO2 laser with fast axial flow

Michail G. Galushkin; Vladimir S. Golubev; V. V. Dembovetsky; Yuri N. Zavalov; Valentina Ye. Zavalova

doi:10.1117/12.262912

27 December 1996 Influence of a radial inhomogeneity of the active medium on the output radiation power from a cw CO2 laser with fast axial flow

Michail G. Galushkin, Vladimir S. Golubev, V. V. Dembovetsky, Yuri N. Zavalov, Valentina Ye. Zavalova

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Proceedings Volume 3052, Ninth International School on Quantum Electronics: Lasers--Physics and Applications; (1996) https://doi.org/10.1117/12.262912
Event: Ninth International School on Quantum Electronics: Lasers: Physics and Applications, 1996, Varna, Bulgaria

Abstract

Experimental and theoretical investigations were made of a radial inhomogeneity of the gain in a cw CO₂ laser with fast axial flow. The results showed that this inhomogeneity was the result of a radial inhomogeneity of the temperature and of contraction of a longitudinal self-sustained discharge towards the axial region in a gas-discharge tube. This caused saturation of the rise of the small-signal gain when the discharge current was increased. It also reduced the rate of the output radiation power with increase in the input energy when the fundamental Gaussian mode was generated.

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Michail G. Galushkin, Vladimir S. Golubev, V. V. Dembovetsky, Yuri N. Zavalov, and Valentina Ye. Zavalova "Influence of a radial inhomogeneity of the active medium on the output radiation power from a cw CO2 laser with fast axial flow", Proc. SPIE 3052, Ninth International School on Quantum Electronics: Lasers--Physics and Applications, (27 December 1996); https://doi.org/10.1117/12.262912

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KEYWORDS

Continuous wave operation

Carbon dioxide lasers

Gas lasers

Ions

Mirrors

Diffusion

Gaussian beams

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