What factors determine the marking depth of the high power uv laser source?

1. Improve the power of the laser marking machine

Increasing the power of the laser marking machine can directly improve the marking depth, but many problems will be encountered later due to increasing its power. For example, the laser power supply, cavity mirror, etc. need to be replaced, and the cost has increased a lot last time, so this method is not recommended.

2. Improve the quality of subsequent processing of the spot

How to improve the quality of spot processing can start with beam expanders, and high-quality beam expanders can get better spots.

3. Optimize the beam quality of the laser

This is mainly through the essential processing of the laser. By replacing the laser material, the laser pump source and the laser reflector, the beam quality can be optimized to improve the marking depth.

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From the power range of the laser, increasing the power of the laser will directly increase the depth of laser marking. But it must be remembered that once the power of the laser is changed, the matching laser power supply, laser chiller, laser Q-switching system, laser cavity mirror, etc. can be replaced, and the cost will increase a lot. , the workload will also increase.

In essence, optimizing the beam quality of the laser will also improve the strength and depth of the laser marking machine. This method is processed from the method of generating the laser, such as manipulating the laser cavity, such as replacing the good laser material, laser crystal or replacing the higher-grade gas, replacing the laser pump source with more reliable and stable quality, the laser Measures such as total mirror and output mirror.

In terms of subsequent laser spot processing, using a high-quality laser group can achieve twice the result with half the effort. For example, use a high-quality beam expander so that the beam expands into a perfect beam similar to a Gaussian beam. Use high-quality F-∝ field lens to make the passing laser have better focus and better light spot. The energy of the light spot is used more uniformly in the effective width.