The MOPA laser engraving machine is an advanced technology in the field of industrial engraving and marking, designed using Master Oscillator Power Amplifier technology.
MOPA Laser Engraving Machine
One of the unique features of MOPA is its ability to engrave without burning or causing unwanted discoloration around the design; this is especially important for sensitive materials such as ABS and PVC plastics. It also allows for the creation of a variety of colors on stainless steel, making it an excellent choice for decorative applications, branding, and the production of special parts. With its high accuracy, consistent engraving quality, and versatile laser settings, MOPA has become a popular choice in the electronics, medical, automotive, and advertising industries. Despite its higher price than conventional models, its quality and technical advantages make it a smart choice for professional and sensitive applications.
Device features
1. Adjustable pulse length: The most important feature of MOPA devices is that their pulse length and frequency are adjustable. This feature allows different types of materials to be engraved or marked with different qualities.
2. Burn-free engraving: Compared to conventional fiber lasers, MOPA has the ability to engrave without discoloration or burning around the design. This is very important for engraving on sensitive plastics, such as ABS or PVC.
3. Variety of metal engraving colors: One of the attractive features of MOPA is the ability to create different colors on stainless steel. This feature is especially used for decorative and branding work.
4. Ability to engrave on anodized aluminum surfaces: MOPA can clearly engrave on anodized aluminum without removing the anodized coating, something that is not possible with conventional fiber lasers.
In the table below, you can see the source parameters of the Mopa laser device.
| Parameter Unit | Unit | Laser Mopa |
|---|---|---|
| Product model | 20-M7-SR | |
| Square meters | / | <1.4 |
| Armored cable length | m | 2 |
| Operating temperature | W | 20 |
| Maximum pulse energy | mJ | 1 |
| Pulse repetition rate range | kHz | 1~4000 |
| Pulse width | ns | 2~500 |
| Output power instability | % | <5 |
| Cooling method | / | Air cooling |
| Operating voltage | V | 24 (DC) |
| Nominal power consumption | W | 95 |
| Electricity demand supply | W | >120 |
| Central emission wavelength | nm | 1064 |
| Emission bandwidth @3db | nm | <15 |
| Output beam diameter | nm | 7.0±1.0 |
| Output power adjustment range | % | 0~100 |
| Operating temperature | ℃ | 0~40 |
| Laser weight | KG | 1.86 |
| Dimensions (Height × Width × Length) | % | 188 x 110 x 85.5 |
Advantages of MOPA over fiber laser:
1. More control over laser parameters
2. Higher quality in delicate engravings
3. Without damaging the surface layers of the material
4. Greater flexibility in the type of materials that can be engraved
Below is a comparison table between MOPA laser and Q-switched Fiber Laser, clearly showing the differences:
| Features | Conventional Fiber Laser | Mopa Laser |
|---|---|---|
| Pulse Width Control | Fixed (typically 80-120 nanoseconds) | Adjustable (typically 2-500 nanoseconds) |
| Ability to create color on metals | No | Yes (especially on steel) |
| Engraving quality on plastic | May cause burns or discoloration | Very high and no burns |
| Laser parameter settings | Limited | Advanced and precise |
| Device price | Lower | Higher |
| Engraving on anodized aluminum | Usually damaging, faint | No damage, very clear |
| Precision industrial application | Suitable for general engraving | Ideal for delicate applications |
| Creating decorative designs | Limited | Excellent, especially with color effects |
| Engraving speed | High, lower accuracy | Relatively lower, high accuracy |
| Device Lifespan | Long Lifespan | Long Lifespan |
Conclusion
If precision, finesse, and special capabilities such as color and burn-free engraving are important, MOPA is a better choice. If you are on a budget and want general metal engraving, a regular fiber laser is also a good option.
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