The optical phenomena produced during the transmission of light are mainly due to the inherent defects of its matrix material, quartz glass, and the presence of metal transition impurities. These are typically classified into scattering loss, absorption loss, and dispersion loss.

1. Absorption and consumption.

The loss in this aspect is caused by the presence of metal impurities in the fiber core and the absorption of OH light, with the focus on the absorption issues of infrared and ultraviolet spectra.

2. Dispersion consumption.

Dispersion is also a major factor contributing to the laser loss of fiber laser marking machines. It is mainly caused by three aspects: waveguide dispersion, material dispersion, and intermode dispersion. The losses caused by these three aspects are not the same.

3. Scattering consumption.

Scattering is a phenomenon that occurs when the different atomic densities in various marked materials result in varying degrees of fluctuation, and then rapid condensation leads to uneven density.

Surely, many users who have operated laser marking machines have certain insights into the red light indication system of the marking machine. The production of a fiber laser marking machine must include a red light indication system, which is often referred to as red light adjustment here. However, the functions of red light adjustment are numerous and it plays a crucial role in the marking and positioning of the laser marking machine. The functions of red light regulation mainly include the following three points:

Red light adjustment is used as an indicator light in the adjustment of the resonant cavity optical path.

2. Red light can also serve as the focus point of a laser marking machine, which indicates the marking distance.

3. As an indicator light for marking positions on laser marking machines, depending on the marking software, it can be classified into various indication methods such as the indication of the marking center point, the indication of the length and width range of the marking pattern, and the overall simulation indication of the marking pattern.

It should be particularly noted that to activate the red light adjustment of the laser marking machine, the operator must have a certain understanding of the equipment. For instance, in most laser marking machine manufacturers, the red light adjustment is activated through the marking software, such as the ultraviolet laser marking machine.