Comparative study of high-power CdSiP<sub>2</sub> OPO pumped by an ns-pulsed Ho:LLF laser at 2.06 µm versus the ZnGeP<sub>2</sub> crystal
We present a study of optical parametric oscillators using CdSiP<sub>2</sub> (CSP) and ZnGeP<sub>2</sub> (ZGP) crystals pumped by a nanosecond Q-switched 2.06 µm Ho:LiLuF<sub>4</sub> (Ho:LLF) laser in a compact linear cavity. In the Type I critical phase-matching configuration, we achieved an average output power of more than 8 W in the mid-IR band with good beam quality from the CSP OPO. The idler and signal waves can be tuned in a wide range of 3.2 - 5.2 µm by crystal rotation. The performance in terms of beam quality, pulse dynamics, and spectral response was compared to the ZGP OPO with the same crystal length of 9 mm.
Authors
- G. Spindler
- stefano bigotta
- Marcin Piotrowski (ORCID: https://orcid.org/0000-0001-6106-7282)
- Achille Bogas-Droy
- Anne Hildenbrand-Dhollande
Publication Details
- Journal
- Optics Express
- Published
- 2025-02-11
- DOI
- https://doi.org/10.1364/oe.553628
- Citations
- 9
- Primary Topic
- Solid State Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 6.57
Funders
- Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr
- Direction Générale de l’Armement