Fluence, a femtosecond laser manufacturer with unique all-fiber technology for material processing, life science, and scientific applications, introduced the Fluence Ultrafast Laser Application Laboratory (ULAL), a new facility in WrocÅ‚aw, Poland. The laboratory is equipped with a top-class, high-precision automated micromachining station based on high-power femtosecond lasers.
Intended to develop laser processes for future products and technologies that will forge new frontiers in micromachining for consumer electronics, medical devices, and other applications, the ULAL allows Fluence to test new processing strategies for industry, perform feasibility studies, and identify new applications.
The micromachining station is comprised of positioning stages, galvoscanners, and various fixed and beam-shaping optics. At the ULAL’s heart is Fluence’s Jasper 30 femtosecond fiber laser, which offers three wavelengths, pulse duration tuning from 230 fs to 10 ps, and different temporal pulse structures.
Covering micromachining at an average power of up to 30 W, with up to 20 MHz rep rates, the Jasper laser offers single pulse and burst mode for process enhancement. This enables splitting of the main pulse into 2–30 pulses, so each provides optimal laser fluence or energy accumulation desired in some applications. Separated by tens of nanoseconds, the pulses in burst mode interact with plasma and open up new possibilities for shaping surface morphology.
Partnerships with SCANLAB, ACS Motion Control, and Direct Machining Control (DMC) allow for the machining of large samples with precise motion synchronization between scanner and linear stages. The ULAL has a SCANLAB excelliSCAN
The ULAL targets laser micromachining applications such as cutting glass, polymer, metal (including titanium, wolfram, and tungsten) and hard materials like diamond and sapphire; microdrilling; surface structuring; surface functionalization; in-volume and surface marking; selective layer removal; semiconductor scribing; and transparent material welding.
The facility’s higher harmonic generation enables greater precision and improved surface finishes. Second harmonic generation (SHG) and third harmonic generation (THG) processes offer a small beam spot, strong light absorption, and minimal heat accumulation to cut heat-sensitive polymers and achieve smooth surfaces on different materials.