GAIN GENERATOR FOR HIGH-ENERGY CHEMICAL LASERS

摘要

A gain generator 10 for use in high-energy flowing gaslasers such as COIL devices comprises a chemical reactant mixingnozzle 12 disposed in a gain medium 16. The nozzle includes aplurality of blades 22 formed of a plastic material resistant tochemical attack at the operating temperature of the gain mediumand non-catalytic to O2 (l.DELTA.). A preferred material ispolyetherimide. The gain medium includes octagonal shapedopenings 50 for the optical mode of the laser beam.