Continuous-wave and passively Q-switched cryogenic Yb: KLu(WO.sub.4./sub.).sub.2./sub. laser

0481854 - FZÚ 2018 RIV US eng J - Journal Article
Navrátil, Petr - Jambunathan, Venkatesan - Paul David, Samuel - Yue, Fangxin - Serres, J.M. - Mateos, X. - Aguilo, M. - Diaz, F. - Griebner, U. - Petrov, V. - Lucianetti, Antonio - Mocek, Tomáš
Continuous-wave and passively Q-switched cryogenic Yb: KLu(WO₄)₂ laser.
Optics Express. Roč. 25, č. 21 (2017), s. 25886-25893. ISSN 1094-4087
R&D Projects: GA MŠMT LO1602; 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
Institutional support: RVO:68378271
Keywords : diode-pumped lasers * laser materials
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 3.356, year: 2017

We study cryogenic laser operation of an Yb-doped KLu(WO4)(2) crystal pumped with a volume Bragg grating (VBG) stabilized diode laser at 981 nm. In the continuous wave laser regime, a maximum output power of 4.31 W is achieved at 80 K with a slope efficiency of 44.0% with respect to the incident pump power. Using a 85% initial transmission Cr: YAG crystal for passive Q-switching, an average output power of 2.11 W is achieved at 100 K for a repetition rate of 19 kHz. The pulse energy, pulse duration and peak power amount to 111 mu J, 231 ns and 0.48 kW, respectively.
Permanent Link: http://hdl.handle.net/11104/0277326