High repetition rate fs lasers for high throughput micromachining
GigaMicro Project
GigaMicro Project will develop high repetition rate (GHz) and high power femtosecond laser and demonstrate new applications in material processing where such a laser will increase processing speed up to 1000 times compared to other conventional ultrafast lasers.
The project goal is to develop a high repetition rate (GHz) and high power (>100W) femtosecond laser and demonstrate new applications in material processing. Our game changer USP fiber laser GIGAMICRO will have up to 1000X HIGHER PROCESSING SPEED ABILITY while MAINTAINING HIGH PRECISION within manufacturing operations. Also, GIGAMICRO can be integrated into mass production easily.
Lumos has been already developing the fiber laser module that allows us to process materials up to 1 mm3/s with micrometer resolution, which is already very faster than commercial products with a high-pulse energy and uniform repetition rate. Lumos’s GHz laser technology is based on ablation-cooling of materials during the micromachining process and the method was published in the most prestigious academic magazine (Nature). However, some applications necessitate higher speeds. There are two bottlenecks; scanner speed and average power. So, Lumos formed a collaboration with TLD and FHNW which are the perfect matches for these two aspects.
TLD’s booster system will enable us to increase the average power up to 100 Watt and the frequency of bursts up to 1 MHz in burst mode or 1 GHz in uniform repetition rate with still low pulse energies on the order of nJs. These specs will be perfect for continuous ablation-cooled material removal according to previous results. We also expect at least an order of magnitude improvement (10mm3/s) in micromachining compared to our current results that are still beyond state-of-the-art. But performance depends not only on the laser system’s ablation rate but also the scanning system’s ability to cope with ablation regime. Hereof FHNW will provide expertise, we will apply the prototype laser to different materials for different applications and engraving with different scanning patterns. Efficient combination of these two companies’ technologies and FHNW’s knowledge will be the output of this project.
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The research leading to these results has received funding from the European Community’s Framework Programme Horizon 2020.
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