Abstract

A multi-pass coaxial molecular gas laser is described in both symmetrical and asymmetrical configuration. An anode vessel receives lasing gas and the gas flows through one or more plasma channels to a cathode vessel which receives the gas and redirects it in the closed system. A second anode vessel may alternatively be provided to double length of the plasma channel and increase surface area exposure of the optical beam to the energized gas. Non-laminar gas flow may be created using spiral nozzles at the entrance of the optical resonator.

IPC Classes  ?

• H01S 3/07 - Construction or shape of active medium consisting of a plurality of parts, e.g. segments
• H01S 3/0943 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a gas laser
• H01J 37/32 - Gas-filled discharge tubes
• H01S 3/0979 - Gas dynamic lasers, i.e. with expansion of the laser gas medium to supersonic flow speeds
• H01S 3/03 - Constructional details of gas laser discharge tubes