HiLASE cryogenically-cooled diode-pumped laser prototype for inertial fusion energy

0425391 - FZÚ 2014 RIV US eng C - Conference Paper (international conference)
Lucianetti, Antonio - Divoký, Martin - Sawicka, Magdalena - Sikocinski, Pawel - Jambunathan, Venkatesan - Pilař, Jan - Slezák, Ondřej - Kmetík, V. - Novák, Jakub - Fibrich, Martin - Rus, Bedřich - Koerner, J. - Hein, J. - Mocek, Tomáš
HiLASE cryogenically-cooled diode-pumped laser prototype for inertial fusion energy.
High Power Lasers for Fusion Research II. Bellingham: SPIE, 2013 - (Awwal, A.). Proceedings of SPIE, 8602. ISBN 9780819493712. ISSN 0277-786X.
[High Power Lasers for Fusion Research II. San Francisco (US), 07.02.2013-07.02.2013]
R&D Projects: GA MŠMT ED1.1.00/02.0061
Grant - others:ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061
Institutional support: RVO:68378271
Keywords : cryogenic cooling * DPSSL * amplified spontaneous emission * ytterbium lasers
Subject RIV: BH - Optics, Masers, Lasers

We present the design parameters of a diode-pumped 100J-class multi-slab Yb:YAG laser at 10 Hz scalable to the kJ regime. Results of detailed energetics and thermo-optical modeling confirm the viability of cryogenic helium-gas cooling approach to drastically reduce thermally-induced distortions in the laser slabs. In addition, a comparison of spectral measurements from laser-diode stacks and Yb:YAG crystals validates the feasibility of highly efficient diode-pumped solid-state lasers at cryogenic temperatures.
Permanent Link: http://hdl.handle.net/11104/0231276