LASIT Laser marking machine for metal can have either pulsed or continuous lasers. This is what we call the operating mode. With continuous-wave lasers, energy flow is constant. This means that the laser continuously emits a single, uninterrupted laser beam. The most common example of an uninterrupted laser beam is a laser pointer. Continuous-wave lasers are commonly used for laser cutting and laser welding.

With pulsed lasers, the laser beam is interrupted at regular intervals, allowing the energy to accumulate, reaching a higher peak power than continuous-wave lasers. The laser beam is released as pulses that last a certain amount of time, called the pulse duration. This high energy is required for many applications, such as laser marking.

Continuous-wave lasers may appear more powerful than pulsed lasers, but this is not always true. This is because, in reality, the power indicates the average laser power, and the average laser power of pulsed lasers is usually lower, even if the peaks are higher.

For example, a continuous 6,000 W laser continuously releases 6,000 W of laser power. On the other hand, a 100 W pulsed laser can release 10,000 W pulses each time.

FlyMOPA Laser Marker

The MOPA laser marker is a fiber laser with a 1064 nm wavelength distinguished from traditional fiber lasers because it lets you control the pulse duration, which allows you to attain impossible results with traditional lasers, especially on plastic or color laser marking.

FlyPico Laser Marker

The Powermark FlyPico laser has a fiber source laser well known for its precision in black and imperceptible picosecond laser marking. It is the first choice when it comes to post-marking treatments, like citric or nitric passivation cycles. 

This laser is being increasingly used for marking Medical Devices, Home Appliances, and Jewelry.

Type of laser by power: what affects the wattage?

The power of the laser affects its processing speed. Contrary to what many believe, the depth and bearing of the marking are independent of the laser wattage.

Below are a few examples of marking where the incisions were made with the same laser source with different powers. In this manner, it is clear how the power influences the speed of the laser marking process.

Types of lasers used by pulse duration

Pulsed lasers are subdivided into different categories based on the duration of their pulses. A modulator is used to control the number of pulses per second. Consequently, each pulse has a precise time length, called pulse duration, pulse length, or pulse width. The pulse duration is the time between the start and end of a pulse. There are different modulating methods to pulse laser beams. Q-switching, gain-switching, and mode-locking are a few examples. The shorter the pulse, the higher the energy peaks.

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