High-power regenerative amplifier based on dual-crystal Yb:CALGO configuration
We demonstrated a high average power dual-crystal Yb:CALGO regenerative amplifier(RA) operated in TEM<sub>00</sub> mode. The dual-crystal configuration effectively mitigated thermal effects and enabled a continuous output power of 42.5 W at a pump power of 160 W with the central wavelength of 1054 nm. During regenerative amplification, an amplified output power of 38 W was obtained at repetition rates ranging from 50 to 200 kHz, the central wavelength of 1043 nm while a compressed pulse width of 290.8 fs. Benefiting from effective thermal management and the thermal insensitive cavity, a near-diffraction-limited beam quality was measured to be <i>M</i><i>x</i>2 = 1.11 and <i>M</i><i>y</i>2=1.11 at the highest output power.
Authors
- Jie Guo (ORCID: https://orcid.org/0000-0002-0814-2025)
- Xiaoyan Liang (ORCID: https://orcid.org/0000-0002-8306-3853)
- Zebiao Gan (ORCID: https://orcid.org/0000-0001-9078-6454)
- Zhihua Tu (ORCID: https://orcid.org/0000-0002-4505-2336)
- Yirong Huang (ORCID: https://orcid.org/0000-0002-8338-8762)
- Jin Li (ORCID: https://orcid.org/0000-0003-3581-2933)
- wenhao guo (ORCID: https://orcid.org/0009-0006-7557-2830)
- Zichen Gao (ORCID: https://orcid.org/0000-0002-4403-585X)
Institutions
- Tongji University (CN)
- ShanghaiTech University (CN)
- Shanghai Zhangjiang Laboratory (CN)
- Shanghai Institute of Optics and Fine Mechanics (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Optics Express
- Published
- 2025-04-16
- DOI
- https://doi.org/10.1364/oe.561697
- Citations
- 2
- Primary Topic
- Solid-state spectroscopy and crystallography
- Type
- article
- Field-Weighted Citation Impact
- 1.04