The ErFemto-780 ProH is a high-power, all-fiber femtosecond laser in the near-infrared band, which uses an erbium-doped fiber laser combined with nonlinear crystal frequency doubling. The output wavelength is 780nm, the pulse width is 180fs, the repetition frequency is 100MHz, and the output power is 1.0W, 1.5W and 2.0W. The light source is based on highly stable fiber seed source, automatic mode-locked pulse technology, low noise cascade fiber amplification, nonlinear and dispersion fine management, with extremely high reliability and stability, suitable for a variety of scientific research and industrial applications, can meet the needs of system integration applications.