0541680 - FZÚ 2022 RIV GB eng J - Journal Article
David, Samuel Paul - Jambunathan, Venkatesan - Yue, Fangxin - Lucianetti, Antonio - Mocek, Tomáš
Diode pumped cryogenic Yb:Lu₃Al₅O₁₂ laser in continuous-wave and pulsed regime.
Optics and Laser Technology. Roč. 135, Mar (2021), č. článku 106720. ISSN 0030-3992. E-ISSN 1879-2545
R&D Projects: GA MŠMT EF15_006/0000674; GA MŠMT LO1602
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 : LuAG crystal * cryogenic lasers * diode pumped solid state laser * passive Q-switching
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 4.939, year: 2021
Method of publishing: Open access
DOI: https://doi.org/10.1016/j.optlastec.2020.106720

We report on diode pumped cryogenic Yb: Lu3Al5O12 (LuAG) laser in the continuous-wave and pulsed regime. Under given experimental condition, we determined an optimum crystal temperature of 140 K for efficient laser operation. A maximum output power of 10.46 W with slope efficiency values of 48.6 and 67% with respect to incident and absorbed power respectively were achieved for an output coupler transmission of 40%. Yb:LuAG laser performed significantly better at 140 K with an output power 16 times and slope efficiency 7 times better than the values at 240 K. Self-starting passively Q-switched Yb:LuAG lasers were also characterized using Cr:YAG saturable absorbers with three different initial transmissions. A maximum pulse energy of 0.215 mJ and a peak power of 1.46 kW were obtained corresponding to the shortest pulse duration of 148 ns.

Permanent Link: http://hdl.handle.net/11104/0319211