A blue laser is a laser with a wavelength between 360 and 480 nanometers (nm). A laser with a wavelength of 450 nm is expected to process copper materials nearly 20 times more efficiently than a wavelength of 1 μm, and the high-power blue laser has advantages in both quantity and quality compared to the traditional near-infrared laser welding process.

  1. Quantitative advantage:

Increased welding speed and a wider range of processes translate directly into faster productivity and minimal production downtime.

  1. Quality advantage:

The result is a larger process range, high-quality welds without spatter and porosity, as well as higher mechanical strength and lower resistivity, and consistent weld quality can greatly improve production yields. In addition, the blue laser can also perform a thermally conductive welding mode, which is not possible with near-infrared lasers.

In addition, blue light has other advantages: for example, blue light absorbs less in seawater and therefore has a longer range, which makes it possible to pioneer the field of underwater laser material processing; Furthermore, blue light is relatively easy to convert to white light, so floodlights and other lighting applications can be implemented very compactly using blue lasers.


Blue laser has a wide range of applications in medical and biological sciences, laser display, scientific research, projection and light storage, as well as some entertainment games. Blue lasers have the characteristics of short wavelength, low diffraction effect and high energy, and have broad application prospects in material processing, optical information storage, display technology, communication technology, laser medical treatment, etc.