This laser adopts erbium-ytterbium co-doped phosphate glass, featuring a wider wavelength tuning range, lower RIN, narrower laser linewidth, higher conversion efficiency and an extremely wide pump band. The laser is bonded with corundum and 1535nm erbium glass, making it more stable and widely used in laser ranging, laser lighting, laser radar systems, target recognition, laser medical treatment and optical fiber communication, etc.