Abstract
Abstract An overview of the Czech national R&D project HiLASE (High average power pulsed laser) is presented. The project focuses on the development of advanced high repetition rate, diode pumped solid state laser (DPSSL) systems with energies in the range from mJ to 100 J and repetition rates in the range from 10 Hz to 100 kHz. Some applications of these lasers in research and hi-tech industry are also presented.
Highlights
Many laser projects are trying to reach the barrier of 1 kW average power in pulsed operation using either thin disks at high repetition rates[3,4,5,6,7] or a high energy and lower repetition rate with conventional designs[8], TRAM (Total Reflection Active Mirror)[9], thick disks[10] or multi-slabs[11, 12]
The HiLASE (High average power pulsed laser) project is aimed at the development of the generation of pulsed diode pumping of solid-state lasers (DPSSL) for hi-tech industrial applications, such as laser-induced damage testing, extreme ultra-violet (EUV) light generation, surface cleaning, precise manufacturing, laser peening, etc
HiLASE will be a user facility with several laser systems, with output parameters ranging from a few picosecond pulses with energies of 5 mJ–0.5 J and repetition rates of 1–100 kHz to systems with 100 J output energy in nanosecond pulses with a repetition rate of 10 Hz
Summary
Efficient diode pumping of solid-state lasers (DPSSL) has enabled lasers to reach CW output powers in the region of 100 kW[1, 2]. Many laser projects are trying to reach the barrier of 1 kW average power in pulsed operation using either thin disks at high repetition rates[3,4,5,6,7] or a high energy and lower repetition rate with conventional designs[8], TRAM (Total Reflection Active Mirror)[9], thick disks[10] or multi-slabs[11, 12]. It is important to realize a robust, compact, and low-cost alternative to Ti:sapphire-based pulsed laser systems Thindisk lasers with their feature of a high pulse energy in the sub-picosecond region are one of the best devices suited for this application. Within the HiLASE project, three thin-disk-based kWclass laser beamlines are being developed, each delivering different output parameters.
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