Performance comparison of Yb:YAG ceramics and crystal gain material in a large-area, high-energy, high average-power diode-pumped laser

0531755 - FZÚ 2021 RIV US eng J - Journal Article
Divoký, Martin - Pilař, Jan - Hanuš, Martin - Navrátil, Petr - Sawicka-Chyla, Magdalena - De Vido, M. - Phillips, P.J. - Ertel, K. - Butcher, T. - Fibrich, Martin - Green, Jonathan T. - Košelja, Michal - Preclíková, J. - Kubát, J. - Houžvička, J. - Rus, Bedřich - Collier, J. - Lucianetti, Antonio - Mocek, Tomáš
Performance comparison of Yb:YAG ceramics and crystal gain material in a large-area, high-energy, high average-power diode-pumped laser.
Optics Express. Roč. 28, č. 3 (2020), s. 3636-3646. ISSN 1094-4087
R&D Projects: GA MŠMT EF15_006/0000674; GA MŠMT LO1602; GA MŠMT EF16_019/0000789; GA MŠMT LM2015086
EU Projects: European Commission(XE) 739573 - HiLASE CoE
Grant - others:OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674; OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Institutional support: RVO:68378271
Keywords : amplified spontaneous emission
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.894, year: 2020
Method of publishing: Open access

We compare for the first time the influence of different Yb:YAG gain media on the performance of a large-area, high average-power laser system with an output energy of up to 6 J. Monocrystalline slabs grown by a new technique without central growth defect are compared with ceramics. Small signal gain, maximum output energy and thermal lensing are compared for ceramic slabs with co-sintered amplified spontaneous emission (ASE) absorber cladding, monocrystalline slab with and without optically bonded ASE absorber cladding, and surface structured monocrystalline slabs. We show that these large monocrystals with optically bonded absorber cladding have similar performance to cladded ceramics, so far the only material for high-energy Yb:YAG lasers. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Permanent Link: http://hdl.handle.net/11104/0310369