New Picosecond laser, ideal for black marking
The TRUMPF TruMicro Series of short and ultra-short solid state lasers are now widely used in micro-production for structuring, material removal, edge stripping, cutting and boring and now the choice is even greater. The company has now introduced several new products in the picosecond spectrum, one of which is the new TruMicro Series 2000.
This is an affordable entry level range whose lasers, with a pulse duration of just 20 picoseconds, deliver ten microjoules of pulse energy and an average output power of ten Watts at high brilliance.
With an M2 beam quality of less than 1.3, these systems are suitable for high precision separation and structuring. Accordingly the TruMicro 2000 is able to ablate thin film layers made from polyimides or other plastics just 100 nanometers thick.
The TruMicro 2000 is also ideal for black marking on anodized aluminium, an application for high-end ornamentation, typically on smartphones and tablet PCs. The beam generated by the TruMicro 2000 passes through the anodized layer and causes a change of colour in the metal which has a dark appearance even though the material’s surface remains untouched.
Each individual picosecond pulse generated by the TruMicro 2000 is monitored from generation to delivery via an external modulator. As a result, output power and pulse energy are kept at exact levels regardless of any external influences. A patented TRUMPF double feed back loop system controls this process, ensuring the specified power level is delivered to the workpiece.
These small lightweight lasers are also distinguished by their compactness and their choice of control options which allow them to be easily integrated into any production line. Variations operating in the infrared or green wavelengths extend the user’s choice in terms of focusing ability and the required absorption properties.