FIELD: optics.SUBSTANCE: invention relates to laser equipment. Oxygen laser emitter comprises a singlet oxygen generator having a housing, which contains alkaline solution of hydrogen peroxide (SCF), and a rotating disc that rotates in the housing and injection tube supplying gaseous chlorine reacting with the SCFW solution on the surface of the rotating disk, in the upper space in the body to generate singlet oxygen. Laser contains a resonator located directly above singlet oxygen generator and directly connected by a passage with a singlet oxygen generator and a partition wall located between the singlet oxygen generator and the laser cavity and located just above the axis of rotation of the rotating disk. Separation wall is spaced in a vertical direction with axis of rotation of rotating disc, so that the partition wall extends along the location above the axis of rotation, with the passage directly connecting the singlet oxygen generator and the laser cavity is located above the axis of rotation and is of
