Gas laser with closely limiting side walls - uses discharge chamber as waveguide whose surfaces are formed by two concentric cylindrical shells

摘要

The discharge chamber of the gas laser is formed by closely adjacent walls so that it acts as a waveguide for the laser radiation. The waveguide surfaces are equidistant and extend transverse to the radiation direction in a manner exceeding their spacing. The laser resonator is formed by mirrors. The resonator arrangement either uses flat mirrors directly connected to the discharge chamber, or concave mirrors at a given distance from the discharge chamber. The waveguide surface from shells of two concentric cylinders. Preferably the resonator consists of concave toroidal mirrors. The laser gas may flow through the waveguide in the direction of the cylinder axis. Alternately the gas may flow orthogonally to the axis, the waveguide surfaces having perforations for the gas passage.