Double-pass optical parametric generator pumped by Yb thin-disk laser for efficient 1.4-2.9 µm mid-IR radiation generation

0570232 - FZÚ 2024 RIV GB eng J - Journal Article
Csanaková, Bianka - Novák, Ondřej - Roškot, Lukáš - Mužík, Jiří - Cimrman, Martin - Huynh, Jaroslav - Smrž, Martin - Jelínková, H. - Mocek, Tomáš
Double-pass optical parametric generator pumped by Yb thin-disk laser for efficient 1.4-2.9 µm mid-IR radiation generation.
Laser Physics. Roč. 33, č. 2 (2023), č. článku 025005. ISSN 1054-660X. E-ISSN 1555-6611
R&D Projects: GA MŠMT EF15_006/0000674
EU Projects: European Commission(XE) 739573 - HiLASE CoE; European Commission(XE) 871124 - LASERLAB-EUROPE
Institutional support: RVO:68378271
Keywords : nonlinear optics * optical parametric generation * ultrashort pulses * high power laser * mid-infrared * picosecond
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 1.2, year: 2022
Method of publishing: Open access

A rising need for precise and fast sources in the mid infrared (mid-IR) is reflected in the development of a high-power, picosecond mid-IR source capable of generation at high repetition rates. In this work, we present the optimization of an optical parametric generator, pumped by a 3 W portion of total power of the Yb:YAG thin-disk laser (1.3 ps, 90 kHz, 90 W) by comparing a single-pass and double-pass arrangement output parameters in terms of output power dependences on input power, efficiency, beam profiles, stability, and spectra. The output tunability of both arrangements spanned from 1459 nm to 2891 nm, with the upper limit being influenced by the limited transmission of the dichroic components used in the setup above 2700 nm. It was shown that the double-pass arrangement increases the output power, from 17 mW in the single-pass arrangement to 193 mW in the double-pass arrangement at 1459 nm, resulting in over ten-fold output power increase.
Permanent Link: https://hdl.handle.net/11104/0342175