Abstract
A fast-axial-flow (FAF) CO2 laser is one of the promising systems for high-power sources for machinery, welding, and medicine. We have experimentally observed temporal decrease of the amplified power after discharging plasma tubes within a few minutes in the FAF CO2 laser amplifier.1 We first theoretically analyze the power decrease Δ\ transient time to have stable output tst, and the small-signal gain γ by taking account of the gas flow velocity, discharge current, input intensity, and plasma length into the gain constant. Then the theoretical estimates of ΔP, tst, and γ are compared with the experimentally obtained results in the FAF (500-W class) amplifier.
© 1988 Optical Society of America
PDF ArticleMore Like This
Nobuaki TAKAHASHI, Eiichi TSUCHIDA, Heihachi SATO, and Hideya GAMO
MP15 International Quantum Electronics Conference (IQEC) 1988
Yutaka Kodama and Heihachi Sato
CMJ5 Conference on Lasers and Electro-Optics (CLEO:S&I) 1995
M. Gastaud, A. Pons, P. Bousselet, G. Hutin, and H. Brunet
WK25 Conference on Lasers and Electro-Optics (CLEO:S&I) 1986