12 March 2013 Bistable behavior of a continuous optical discharge as a laser beam propagation effect
Author Affiliations +
Abstract
Two stable configurations of a continuous optical discharge (COD) were observed in experiments with plasma sustained continuously in xenon at high pressure by radiation of a medium power CW ytterbium fiber laser. One is the plasmoid of relatively small length with one temperature maximum and laser beam absorption of 10-30%. The other one is the plasma formation stretched along the laser beam with two or three local temperature maxima. The laser beam absorption in the second plasma configuration is increased dramatically up to 70-80% due to increased plasma length. Both plasma shapes were obtained under close conditions, so that oscillations between the two states were possible and also have being observed. The effect was studied and explained on the base of simplified consideration of the laser beam propagation through lens-like plasma medium surrounded by refractive near-spherical bounds between cold and hot gas. Other experimental results on the sustaining conditions of COD and plasma properties are also presented.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
V. P. Zimakov, V. A. Kuznetsov, A. N. Shemyakin, N. G. Solovyov, A. O. Shilov, M. Yu Yakimov, "Bistable behavior of a continuous optical discharge as a laser beam propagation effect", Proc. SPIE 8600, Laser Resonators, Microresonators, and Beam Control XV, 860002 (12 March 2013); doi: 10.1117/12.2003658; https://doi.org/10.1117/12.2003658
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

CW 1.06 µm pumped ytterbium holmium co doped all fiber...
Proceedings of SPIE (August 22 2014)
Continuous-wave diode-pumped Yb:LuVO4 lasers
Proceedings of SPIE (February 20 2007)
Benchmarking and measuring photodarkening in Yb doped fibers
Proceedings of SPIE (February 19 2009)
Yb-doped LMA triple-clad fiber laser
Proceedings of SPIE (September 08 2006)
Recent advances in fiber lasers
Proceedings of SPIE (January 10 1996)

Back to Top