Control of high-power CO2 laser beam

Sergey A. Gnedoy; Vadim V. Samarkin; Vladimir P. Yakunin

doi:10.1117/12.184725

7 September 1994 Control of high-power CO₂ laser beam

Sergey A. Gnedoy, Vadim V. Samarkin, Vladimir P. Yakunin

Proceedings Volume 2207, Laser Materials Processing: Industrial and Microelectronics Applications; (1994) https://doi.org/10.1117/12.184725
Event: Europto High Power Lasers and Laser Applications V, 1994, Vienna, Austria

Abstract

The spatial and temporal beam characteristics of 5 kW power CW pumped CO₂ laser with controllable mirror in the cavity have been investigated. The five-pass unstable cavity with M equals 2 magnification was used, where one of the folding mirrors was replaced by a water cooled flexible mirror based on bimorph piezoelement. The pulse-periodical regime of laser generation in broad frequency range of controlling signals with the 100% beam power modulation depth was realized. The maximal pulse power value exceeding three times the average power level was obtained at 3.8 kHz pulse repetition frequency.

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Sergey A. Gnedoy, Vadim V. Samarkin, and Vladimir P. Yakunin "Control of high-power CO₂ laser beam", Proc. SPIE 2207, Laser Materials Processing: Industrial and Microelectronics Applications, (7 September 1994); https://doi.org/10.1117/12.184725

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