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Appl. Sci. 2015, 5(4), 637-665; doi:10.3390/app5040637

Status of the High Average Power Diode-Pumped Solid State Laser Development at HiLASE

HiLASE Centre, Institute of Physics, Academy of Sciences of the Czech Republic, Za Radnicí 828, Dolní Břežany 252 41, Czech Republic
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Academic Editor: Malte C. Kaluza
Received: 31 July 2015 / Revised: 2 September 2015 / Accepted: 6 September 2015 / Published: 25 September 2015
(This article belongs to the Special Issue Diode-Pumped, Ultra-Short Pulse Lasers)
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Abstract

An overview of the latest developments of kilowatt-level diode pumped solid state lasers for advanced applications at the HiLASE Centre is presented. An overview of subcontracted and in-house-developed laser beamlines is presented. The aim of development is to build kW-class beamlines delivering picosecond pulses between 1- and 100-kHz repetition rates and high-energy nanosecond pulses at 10 Hz. The picosecond beamlines are based on Yb:YAG thin-disk amplifiers and chirped pulse amplification. The current status of the beamlines’ performance is reported. The advantages of zero-phonon line and pulsed pumping are demonstrated with respect to efficiency, thin disk temperature and beam quality. New diagnostics methods supporting the high average power lasers’ development, such as the high-resolution spectroscopy of Yb-doped materials, in situ thin disk deformation measurements, single-shot M2 measurement, realization of wavefront correction by a deformable mirror and the laser performance of a new mixed garnet ceramics, are described. The energetic, thermal and fluid-mechanical numerical modeling for the optimization of the multi-slab amplifiers is also described. View Full-Text
Keywords: diode-pumped solid state lasers (DPSSL); pulsed lasers; high average power laser; Yb:YAG; laser amplifiers; thin disk; chirped pulse amplification diode-pumped solid state lasers (DPSSL); pulsed lasers; high average power laser; Yb:YAG; laser amplifiers; thin disk; chirped pulse amplification
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Novák, O.; Miura, T.; Smrž, M.; Chyla, M.; Nagisetty, S.S.; Mužík, J.; Linnemann, J.; Turčičová, H.; Jambunathan, V.; Slezák, O.; Sawicka-Chyla, M.; Pilař, J.; Bonora, S.; Divoký, M.; Měsíček, J.; Pranovich, A.; Sikocinski, P.; Huynh, J.; Severová, P.; Navrátil, P.; Vojna, D.; Horáčková, L.; Mann, K.; Lucianetti, A.; Endo, A.; Rostohar, D.; Mocek, T. Status of the High Average Power Diode-Pumped Solid State Laser Development at HiLASE. Appl. Sci. 2015, 5, 637-665.

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