Wideband tunable mid-infrared laser generating from near-infrared laser pumped BaGa4Se7 crystal
We have demonstrated wideband tunable optical parametric oscillator (OPO) based on BaGa<sub>4</sub>Se<sub>7</sub> crystal. A pump doublepass, short cavity, singly resonant OPO configuration was used to improve the optical conversion efficiency and reduce the OPO threshold. Using a commercial nanosecond laser with a repetition rate of 10 Hz as the pump source, the tuning range of BaGa4Se7-OPO achieved 3.10-4.84 and 8.24-13.34 µm in mid-wave and long-wave infrared band respectively. The maximum single pulse energy of reached 8.55 mJ at 3.88 µm and 0.855 mJ at 10.8 μm. To achieve high repetition rate operating, an electro-optic Q-switched laser with repetition rate of 1 kHz was built. The high repetition rate BaGa<sub>4</sub>Se<sub>7</sub>- OPO have a maximum output power of 564 mW at 3.87 μm and a tuning range of 2.99-5.04 µm.
Authors
- Jining Li (ORCID: https://orcid.org/0000-0002-8096-4963)
- Kai Zhong (ORCID: https://orcid.org/0000-0002-5320-8388)
- Kai Chen (ORCID: https://orcid.org/0000-0002-7450-6130)
- Jianquan Yao (ORCID: https://orcid.org/0000-0003-3105-4370)
- Yuye Wang (ORCID: https://orcid.org/0000-0001-8957-8252)
- Degang Xu (ORCID: https://orcid.org/0000-0001-6903-0521)
Institutions
- Tianjin University (CN)
Publication Details
- Published
- 2024-12-13
- DOI
- https://doi.org/10.1117/12.3046599
- Primary Topic
- Solid State Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00