Advanced industrial laser systems and applications

Abstract

Industrial laser systems continue to evolve in terms of power levels, brightness and mode of operation. While continouswave (cw) laser systems drive to more efficiency, compactness and robustness, ultra-short pulse (USP) solid-state lasers (SSL) gain increasing attention from industry due to their higher average power levels, increasing pulse energies and more flexible repetition rates, eventually enabling increased productivity and novel materials processing applications. TRUPMF's laser systems portfolio starting in 1985 mirrors this general development and is therefore an interesting subject to reflect the path of industrial laser systems from early CO 2 lasers to the latest generation of diode pumped nanosecond-pulsed disk lasers with up to 400W of average output power at 343nm. Today, our advanced laser families enable novel applications such as EUV light generation, laser lift-off and surface annealing.

Numerical Simulations of Amplified Spontaneous Emission in Yb:YAG Thin-Disk Amplifiers

“…An anti-reflective coating is bonded to the front side of the thin disk. The transmissivity of the anti-reflective coating T AR in dependence of the incidence angle is shown in Figure A.5 2 . The anti-reflective coating is assumed as a single-layer of M gF 2 with a thickness of z AR (λ/4) = λ vac /(4 • n) ≈ 187 nm.…”

“…High-power lasers have a wide field of application, ranging from material processing [1,2], to space debris removal [3][4][5] to the investigation of basic physics [6][7][8]. The thin-disk laser is a well established laser design for reaching a high laser output-power with high optical-optical efficiency and high brightness of the laser beam [9].…”