<title>Development of CO laser excited by transverse rf discharge</title>

Abstract

We have developed a compact kW-class CO laser excited by transverse-RFdischarge.The discharge and output characteristics of the RF-excited CO laser were investigated experimentally.Six gas conditions (pressure, temperature, flow speed, CO-, N2-and 02-concentration) are chosen as the experimental parameters.The optimum values of them to maximize the output power are 50 Torr, 200 K, 17 m/s, 5 %, 12 % and 0.4 % respectively.The maximum output power obtained is 1.3 kW with the electrical conversion efficiency of 27 % and the slope efficiency of 39 %.

State of development high-power cw CO laser for industrial applications

“…22, consist in following: 1) due to increased uniformity of the discharge input power density and quality of a beam is increased; 2) for the no need ofballast resistor and no cathode fall rise electrical efficiency; 3) due to capacitive coupling there are more slow degradatation of the gas mixture and longer life ofelectrodes; 4) it is more suitable to work in pulsing modes.…”

“…In all cases, as in 3-axial, as in axial systems, used discharge E-type with capacitive coupling in various frequent ranges: 13.6 MGz 13,17,19,21,22,27 and 100 MGz20 145 MGz .…”