Diagnostics of turbulent flow parmeters of active mixture in fast axial flow CO2 laser

S. A. Buyarov; V. D. Dubrov; Michail G. Galushkin; Vladimir S. Golubev; R. V. Grishayev; Andrei A. Ionin; Andrei A. Kotkov; Vladislav Ya. Panchenko; Yuri N. Zavalov

doi:10.1117/12.464130

30 April 2002 Diagnostics of turbulent flow parmeters of active mixture in fast axial flow CO₂ laser

S. A. Buyarov, V. D. Dubrov, Michail G. Galushkin, Vladimir S. Golubev, R. V. Grishayev, Andrei A. Ionin, Andrei A. Kotkov, Vladislav Ya. Panchenko, Yuri N. Zavalov

Author Affiliations +

Proceedings Volume 4644, Seventh International Conference on Laser and Laser-Information Technologies; (2002) https://doi.org/10.1117/12.464130
Event: Seventh International Conference on Laser and Laser Information Technologies, 2001, Vladimir, Suzdal, Russian Federation

Abstract

The characteristics of turbulent flow of laser mixture in high-power industrial CO₂ lasers with fast axial flow have an influence on energy parameters of laser beam. In particular the transverse size of DC discharge and discharge stability depend on coefficient of turbulent diffusion. Moreover, turbulent pulsations cause small-scale optical inhomogeneities in the active medium. By the method of intra-resonator four-wave mixing in the active mixture of industrial CO₂ laser with fast axial flow the coefficient of turbulent diffusion was determined. The nonlinearity of gain coefficient was used, and dissipation of amplitude diffraction grating due to turbulent diffusion was taken into consideration.

Citation Download Citation

S. A. Buyarov, V. D. Dubrov, Michail G. Galushkin, Vladimir S. Golubev, R. V. Grishayev, Andrei A. Ionin, Andrei A. Kotkov, Vladislav Ya. Panchenko, and Yuri N. Zavalov "Diagnostics of turbulent flow parmeters of active mixture in fast axial flow CO₂ laser", Proc. SPIE 4644, Seventh International Conference on Laser and Laser-Information Technologies, (30 April 2002); https://doi.org/10.1117/12.464130

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available