ErPicoPro fiber frequency comb is an all fiber picosecond laser in the infrared band, with a typical output wavelength of 1560nm, pulse width less than 20ps, and repetition rate of 80MHz. This light source combines high stability fiber seed source, fully automatic mode locking pulse technology, low-noise cascaded fiber amplification, and fine management of nonlinearity and dispersion. The $n $n optoelectronic integrated design and layered layout make this product both compact, reliable, and stable. In addition, the same laser from Langyan Technology also offers optional parameter outputs with wavelengths ranging from 1550-1580nm, pulse widths between 8ps-60ps, and repetition rates between 10-80MHz, meeting the needs of various application scenarios.