Industrial grade 100 kW power CW fiber laser

101.3 kW industrial fiber laser emitting at wavelength range 1070 nm would be presented. To the best of our knowledge, this is the most powerful continuous-wave laser system ever developed all over the world for industrial applications.Other unique features of the laser include a record wall-plug power consumption efficiency 35.4% and an excellent beam quality, with BPP not exceeding 16 mm × mrad, when we used 300 um × 10 m feeding fiber, or near 25 mm × mrad, when fiber-to-fiber output coupler with 500 um × 50 m process fiber was used. Laser cabinet has compact dimensions, whereas a total weight doesn’t exceed 3600 kg.Possible applications of such systems and further opportunities of power increase of fiber lasers would be discussed also.