0441279 - FZÚ 2015 RIV US eng J - Journal Article
Smrž, Martin - Miura, Taisuke - Chyla, Michal - Nagisetty, Siva S. - Novák, Ondřej - Endo, Akira - Mocek, Tomáš
Suppression of nonlinear phonon relaxation in Yb:YAG thin disk via zero phonon line pumping.
Optics Letters. Roč. 39, č. 16 (2014), 4919-4922. ISSN 0146-9592. E-ISSN 1539-4794
R&D Projects: GA MŠMT ED2.1.00/01.0027; GA MŠMT EE2.3.20.0143; GA MŠMT EE2.3.30.0057
Grant - others:HILASE(XE) CZ.1.05/2.1.00/01.0027; OP VK 6(XE) CZ.1.07/2.3.00/20.0143; OP VK 4 POSTDOK(XE) CZ.1.07/2.3.00/30.0057
Institutional support: RVO:68378271
Keywords : pumped Yb:YAG * temperature * laser * dependnce
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 3.292, year: 2014 ; AIS: 1.041, rok: 2014
DOI: https://doi.org/10.1364/OL.39.004919

A quantitative comparison of conventional absorption line (940 nm) pumping and zero phonon line (ZPL) (969 nm) pumping of a Yb:YAG thin disk laser is reported. Characteristics of an output beam profile, surface temperature, and deformation of a thin disk under the different pump wavelengths are evaluated. We found that a nonlinear phonon relaxation (NPR) of the excited state in Yb:YAG, which induces nonlinear temperature rise and large aspheric deformation, did not appear in the case of a ZPL pumped Yb:YAG thin disk.
Permanent Link: http://hdl.handle.net/11104/0244307