Jing Dong, Hantian Chen, Hailin Wang, Xianshi Jia, Guangzhi Zhu, Kozlov Aleksei, Xiao Zhu. Research on Picosecond Laser Regenerative Amplifier Based on Thin-Disk Gain Medium[J]. Acta Optica Sinica, 2021, 41(14): 1414003
- Acta Optica Sinica
- Vol. 41, Issue 14, 1414003 (2021)
Fig. 1. Schematic of the Yb∶YAG thin-disk regenerative amplifier
Fig. 2. Theoretical calculation of spot size of fundamental mode in regenerative amplifier cavity
Fig. 3. Results of numerical solution of the theoretical model. (a) Curve of the upper state population density N varying with time; (b) curve of the pulse energy in the cavity varying with time
Fig. 4. Experimental results. (a) Pulse amplification process in the regenerative amplifier cavity measured by experiment; (b) output pulse measured by experiment
Fig. 5. Experimental results. (a) Output power with different round-trips obtained by experimental measurement and theoretical calculation; (b) theoretically calculated output power of different losses with different round-trips
Fig. 6. Experimental results. (a) Continuous output power at different pump powers; (b) beam quality of the output laser
Fig. 7. Spectrum of seed light and amplified light
Fig. 8. Experimental results. (a) Autocorrelation curve of seed light; (b) autocorrelation curve of amplified light
Fig. 9. Schematic of the regenerative amplifier based on double thin-disk modules
Fig. 10. Output power of regenerative amplifier based on double thin-disk modules
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