UDC 621.373.826
EFFICIENT METHOD OF PUMPING WIDE-APERTURE TEA-CO2 LASERS
B. A. Kozlov, Dr. in physics and mathematical sciences, full professor, department of industrial electronics, RSREU, Ryazan, Russia;
orcid.org/0000-0001-5957-3688, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
D. S. Makhanko, senior researcher, JSC Plasma, Ryazan, Russia;
orcid.org/0000-0002-7609-9970, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
A modified method for producing a volumetric discharge in CO2 laser mixtures at atmospheric pressure using electrode-free discharge in cathode region with subsequent injection of free electrons into the main discharge gap is proposed and tested. A homogeneous discharge with the volume of 10×10×30 cm3 was obtained. Maximum pumping energy density of 110 mJ·cm–3 in CO2:N2:He = 1:1:8 working mixture was achieved.
Key words: : TEA-CO2 laser, volume discharge, electric discharge module, pumping energy density, preionization, pulse generator.