3391 and 7699 laser generations and questions on the chaos

Summary In this report investigations are presented of laser generations at 3391 nm and 3391 and 7699 nm, or rather of changes induced by them in populations of the 5s′ 1/2] ₁ ⁰ , 4p′3/2]₂ and 3d′5/2] ₃ ⁰ levels, depending upon the angle of the tilted mirror of the He−Ne laser system. This writer has discovered that the above laser generations develop at a strongly tilted mirror, when the beam reflected from one mirror, in order to reach the other, has to be reflected many times on the inside walls of the discharge tube. The work was supported by CPBR 8.14.