Abstract

Gas discharge excitation at 40.68 MHz (ISM frequency in the VHF-band) is proven to be efficient for non-wave-guide, diffusion-cooled, large area CO₂ laser employing a novel type of resonator cavity referred to as split-wave hybrid (SWH) resonator [1]. SWH resonator approach represents a custom resonator concept in the design of sealed-off, high power, single mode CO₂ lasers for industrial applications. Electrode walls in the SWH resonator act as wave-front-splitting mirrors similar to a Fresnel double mirror or Lloyd mirror interferometer [2].

© 1998 IEEE