Fenxiang Wu, Jiabing Hu, Xingyan Liu, Zongxin Zhang, Peile Bai, Xinliang Wang, Yang Zhao, Xiaojun Yang, Yi Xu, Cheng Wang, Yuxin Leng, Ruxin Li. Dispersion management for a 100 PW level laser using a mismatched-grating compressor[J]. High Power Laser Science and Engineering, 2022, 10(6): 06000e38
- High Power Laser Science and Engineering
- Vol. 10, Issue 6, 06000e38 (2022)
Fig. 1. The schematic of our scheduled SEL-100 PW laser facility.
Fig. 2. (a) Simulated pulse spectrum and calculated spectral phase. (b) FTL and corresponding compressed pulses of the SEL-100 PW laser facility.
Fig. 3. (a) The residual FOD and corresponding pulse duration with the change of incident angle in the stretcher when the GDD and TOD are cancelled out. (b) The pulse duration after balancing the GDD, TOD and FOD by optimizing the compressor, when the incident angle deviation in the stretcher is +4°.
Fig. 4. (a) The residual FOD and corresponding pulse duration with the change of the grating pair separation in the stretcher when the GDD and TOD are cancelled out. (b) The pulse duration after balancing the GDD, TOD and FOD by optimizing the compressor, when the grating pair separation deviation in the stretcher is +20 mm.
Fig. 5. (a) The compressed pulse duration with the change of the grating groove density in the stretcher, after balancing the residual dispersion. (b) The residual FOD and corresponding pulse duration with the change of the grating groove density in the stretcher when the GDD and TOD are cancelled out.
Fig. 6. The pulse durations after balancing the residual dispersion by optimizing the compressors when the grating groove densities in the stretchers are (a) 1361 g/mm and (b) 1369 g/mm.
Fig. 7. The calculated pulse durations with the variation of fused silica thickness in the laser system, after balancing the residual GDD, TOD and FOD by optimizing the compressor.
Fig. 8. The pulse durations after balancing the residual dispersion by optimizing the compressor when the fused silica thickness errors in the laser system are (a) –150 mm and (b) 120 mm.
Fig. 9. The pulse durations (a) and their partial projection (b) after balancing the residual dispersion by optimizing the compressor when the grating groove density in the stretcher and the material dispersion in the laser system are changing simultaneously.
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Table 1. Dispersion at the 925 nm central wavelength of the SEL-100 PW laser facility.
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