First, a brief introduction to high-power nanosecond UV lasers. Nanosecond ultraviolet laser is a device that uses high-energy laser pulses to process the surface of materials. Its pulse width is usually between a few to tens of nanoseconds. Its working wavelength is usually in the ultraviolet band, with higher photon energy and better beam quality. This kind of laser is widely used in various material processing fields, such as glass, ceramics, metal, etc.