The device (1) has a laser, and a housing (2) with a coupling unit (8) that couples a laser light of the laser into fiber optics (3). The laser is a solid-state laser, which emit laser light with a wavelength within range of 1100 to 1400 nanometer at maximum intensity. The laser has an output power of 25 watt. The laser light has a preset nanometer of spectral half-power bandwidth. The laser comprises a set of laser units, and the fiber optic has an end with a handle part (4). The laser and laser units contain quantum point laser and/or quantum film laser.