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

Applied Sciences

Taisuke Miura¹  David Vojna¹  Jens Linnemann¹  Hana Turčičová¹  Ondřej Slezák¹  Klaus Mann¹  Michal Chyla¹  Stefano Bonora¹  Akira Endo¹  Alina Pranovich¹  Antonio Lucianetti¹  Venkatesan Jambunathan¹  Siva Sankar Nagisetty¹  Jaroslav Huynh¹  Pawel Sikocinski¹  Jiří Mužík¹  Danijela Rostohar¹  Patricie Severová¹  Martin Smrž¹  Magdalena Sawicka-Chyla¹  Tomáš Mocek¹  Martin Divoký¹  Ondřej Novák¹  Jakub Měsíček¹  Lucie Horáčková¹  Jan Pilař¹  Petr Navrátil¹ 

[1] HiLASE Centre, Institute of Physics, Academy of Sciences of the Czech Republic, Za Radnicí 828,Dolní Břežany 252 41, Czech Republic;

关键词: diode-pumped solid state lasers (DPSSL);    pulsed lasers;    high average power laser;    Yb:YAG;    laser amplifiers;    thin disk;    chirped pulse amplification;   

DOI  :  10.3390/app5040637

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown