Carbon dioxide lasers, Wave guides -- Innovations, Laser beams -- Stability -- Testing
A new type of waveguide laser is described in which a single-surface concave metal waveguide also doubles as the grounded electrode in a radio-frequency-excited gaseous discharge. The laser’s output modes and spectrum have been studied theoretically and experimentally for cw CO₂ operation of the laser. Overall operating efficiency and mode stability are comparable with those of conventional dielectric waveguide CO₂ lasers, and advantages of the metal waveguide laser include convection cooling, intracavity mode control, and partial self-alignment.
Jonathan G. Grossman, Lee W. Casperson, Oscar M. Stafsudd. Radio-frequency-excited carbon dioxide metal waveguide laser. Applied Optics, Volume 22, Number 9 (May 1983), pp. 1298-1305.