What is a femtosecond laser marking control system

Femtosecond is a unit of time, and one femtosecond is equal to 10 ^ -15 seconds. Femtosecond laser refers to a laser with a pulse width of femtosecond level. Femtosecond laser has the characteristics of short pulse width and high power peak. Due to its extremely short pulse width, femtosecond laser can process materials on extremely small scales under a single laser irradiation. Therefore, femtosecond laser is mainly used for high-precision processing.

Femtosecond laser marking is the use of femtosecond laser for laser marking processing. This type of laser is mainly used for the processing of high-precision materials such as thin films, optical components, medical equipment, and high-precision components. Precision machining requires high demands on all aspects of equipment, and the control system is one of the typical representatives.

The laser control system is the control core of laser equipment. Operators input the required patterns into the control system and set parameters such as laser power, processing speed, processing method, and processing times to start processing. The control system will control the equipment to operate independently, so the laser control system is also an intelligent CNC equipment.

The femtosecond laser marking control system differs from ordinary laser marking control systems in the following aspects:
Laser control: In high-precision processing, the laser control system needs to accurately control various parameters such as laser input power, pulse width, pulse frequency, etc. This requires the control system to have excellent performance in laser control.

Motion control: also known as galvanometer control, because laser marking equipment mainly adjusts the motion trajectory of the laser through the galvanometer motor controlling the reflector. In high-precision processing, the motion trajectory must be perfectly matched and the route must be reasonable, so as to complete the processing quickly and friendly. This requires high requirements for the motion algorithm in the control system.

Processing method: The shape, properties, reflectivity and other properties of the processed materials vary, and the corresponding processing method used will also vary. For example, some high hardness ceramic materials are difficult to complete processing at once, and require repeated peeling of the material surface at different positions before marking can be completed. This requires the control system to have corresponding functions to achieve such complex processing.

Stability: Stability is a basic requirement for precision machining. When precision marking materials, a stable laser marking control system should ensure that there will be no disconnection, machine jamming, or other situations during this period. In addition, the electromagnetic environment of the factory is very complex, and a qualified control system should also have specialized measures to prevent abnormal connections caused by electromagnetic interference.

In summary, compared to ordinary laser marking control systems, the femtosecond laser marking control system has higher requirements in both software and hardware performance, and the price will also be much higher. The specific choice should be determined based on the performance of the control system and the processing needs of the user.