The ultra-stable picosecond fiber laser offered by Precilasers is an excellent seed source for industrial-grade ultrafast laser applications. It has the advantages of fiber lasers: small size, no need for thermal management, and good beam quality. The central wavelength of the ultrafast fiber laser is 1064 nm and the repetition rate can be from 20 to 30 MHz. The temporal pulse width can be less than 10 ps and the spectral width is less than 0.5 nm. The maximum pulse energy can be up to 400 nJ. By utilizing a unique nonlinear technology to achieve mode locking, the ultrashort pulse not only has good long term stability, but also can withstand 0-45 ℃ operating environment. The laser also has excellent performance on self-starting of mode-locking, which can achieve more than 100,000 consecutive self-starts, and most of the startup time is less than 2 s.