0587570 - FZÚ 2025 RIV GB eng J - Journal Article
Csanaková, Bianka - Novák, Ondřej - Roškot, Lukáš - Mužík, Jiří - Smrž, Martin - Jelínková, H. - Mocek, Tomáš
High power single crystal KTA optical parametric amplifier for efficient 1.4–3.5 µm mid-IR radiation generation.
Laser Physics. Roč. 34, č. 7 (2024), č. článku 075401. ISSN 1054-660X. E-ISSN 1555-6611
R&D Projects: GA MŠMT(CZ) EH22_008/0004573
EU Projects: European Commission(XE) 871124 - LASERLAB-EUROPE
Institutional support: RVO:68378271
Keywords : nonlinear optics * optical parametric amplification * ultrashort pulses * high power laser * mid-infrared * picosecond * KTA
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 1.2, year: 2022
Method of publishing: Open access

In this paper, we present a single crystal, KTA (potassium titanyl-arsenate, KTiOAsO4) based picosecond optical parametric amplifier pumped by an in-house built 1030 nm Yb:YAG thin-disk laser, capable of tunability from 1.46 to 3.5 µm, operating at 90 kHz, with high average power in the signal and idler beams. The highest output power of 8.9 W was reached for the 1750 nm signal beam with 19% conversion efficiency and the respective 2500 nm idler beam power was 6.2 W with 13% efficiency. The highest combined signal and idler mid-infrared power was 17 W at the 2060 nm wavelength degeneracy point.
Permanent Link: https://hdl.handle.net/11104/0354711