Beam quality of a high-power CO2 laser with an unstable resonator and a variable-reflectivity mirror

Michail G. Galushkin; Vladimir P. Yakunin; Vadim V. Samarkin; Valentina Ye. Zavalova

doi:10.1117/12.337553

20 January 1999 Beam quality of a high-power CO₂ laser with an unstable resonator and a variable-reflectivity mirror

Michail G. Galushkin, Vladimir P. Yakunin, Vadim V. Samarkin, Valentina Ye. Zavalova

Proceedings Volume 3688, 6th International Conference on Industrial Lasers and Laser Applications '98; (1999) https://doi.org/10.1117/12.337553
Event: 6th International Conference on Industrial Lasers and Laser Applications '98, 1998, Shatura, Moscow Region, Russian Federation

Abstract

The beam characteristics of the 2.4 kW industrial CO₂ laser with the continuous current discharge and transverse gas flow have been studied depending on the main parameters of the telescopic resonator with the convex variable reflectivity mirror. The three-fold reduction of the beam divergence and the power decease only by 15 percent in comparison with the conventional stable resonator were obtained. Besides, the high degree of matching of the parameters of optical resonator and gas discharge chamber was reached.

Citation Download Citation

Michail G. Galushkin, Vladimir P. Yakunin, Vadim V. Samarkin, and Valentina Ye. Zavalova "Beam quality of a high-power CO₂ laser with an unstable resonator and a variable-reflectivity mirror", Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); https://doi.org/10.1117/12.337553

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