Tunable laser mode evolution principle by modulated gas laser resonator

Abstract Research on laser resonators has been a hot research to improve various laser performances, but there are few studies on the special spot of the external resonant gas laser. In this paper, the special full-resonant modulated gas laser resonant is experimentally studied. With the quantitative change of the tilt angle of the tuned laser resonant in different directions, the shape of the laser spot emitted by the laser resonant is special and the law is different. When a copper wire is added to the resonant, the shape of the laser spot changes greatly, and the shape of the spot is extremely rare.