High-power regenerative amplifier based on dual-crystal Yb:CALGO configuration
Year: 2025
Type: article
Abstract: We demonstrated a high average power dual-crystal Yb:CALGO regenerative amplifier(RA) operated in TEM00 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 M x 2 = 1.11 and M y 2=1.11 at the highest output power.
Source: Optics Express
DOI: 10.1364/oe.561697
Authors: Zhihua Tu, Jie Guo, Zebiao Gan, Jinfeng Li, Zichen Gao, Yuguang Huang, Wenhao Guo, Xiaoyan Liang
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Awards: G3299783999, G3942867700, G7562407080
OpenAlex ID: W4409484489