Efficient diode pumped Yb:Y.sub.2./sub.O.sub.3./sub. cryogenic laser

0508029 - FZÚ 2020 RIV DE eng J - Journal Article
David, Samuel Paul - Jambunathan, Venkatesan - Yue, Fangxin - Lucianetti, Antonio - Mocek, Tomáš
Efficient diode pumped Yb:Y₂O₃ cryogenic laser.
Applied Physics B-Lasers and Optics. Roč. 125, č. 7 (2019), s. 1-5, č. článku 137. ISSN 0946-2171. E-ISSN 1432-0649
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 : cryogenic * diode pumped * Yb:Y₂O₃
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.817, year: 2019
Method of publishing: Limited access
https://doi.org/10.1007/s00340-019-7250-8

We report on continuous-wave and pulsed laser characteristics of Yb:Y2O3 transparent ceramic at cryogenic temperatures. A VBG stabilized pump diode emitting at 976 nm which matches with the zero-phonon line of the gain media was employed. At 100 K, a maximum continuous-wave output power of 12 W, around three times than that of 300 K and a slope efficiency of 54.4%, 2.4 times than that of 300 K was achieved using an output coupler transmission of 50% with respect to incident power. In passive Q-switched regime, using a Cr:YAG saturable absorber with an initial transmission of 85%, a maximum energy of 0.46 mJ per pulse was obtained with a peak power of 1.64 kW at a repetition rate of 19.6 kHz.

Permanent Link: http://hdl.handle.net/11104/0298984