• Chinese Journal of Lasers
  • Vol. 46, Issue 1, 100002 (2019)
Zhu Jianqiang1,2,*, Chen Shaohe1,2, Zheng Yuxia1,2, Huang Guanlong1,2..., Liu Renhong1,2, Tang Xianzhong1,3, Zhang Mingke1,2, Xu Zhenhua1,2, Shen Liqing1,2, Chen Qinghao1,2, Peng Zengyun1,2, Zhu Baoqiang1,2, Zhu Qingchun1,2, Tang Yongxing1,2, Zhang Weiqing1,2, Tang Fulin1,2, Liu Fengqiao1,3, Mao Chusheng1,3, Zhu Jian1,3, Ma Weixin1,2, Li Xuechun1,2, Yang Lin1,2, Wang Shusen1,2, Yang Yi1,2, Cai Xijie1,2, Lin Zunqi1,2, Fan Dianyuan1,2, Wang Shiji1,3, Gu Yuan1,3 and Deng Ximing1,2|Show fewer author(s)
Author Affiliations
  • 1[in Chinese]
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    DOI: 10.3788/CJL201946.0100002 Cite this Article Set citation alerts
    Zhu Jianqiang, Chen Shaohe, Zheng Yuxia, Huang Guanlong, Liu Renhong, Tang Xianzhong, Zhang Mingke, Xu Zhenhua, Shen Liqing, Chen Qinghao, Peng Zengyun, Zhu Baoqiang, Zhu Qingchun, Tang Yongxing, Zhang Weiqing, Tang Fulin, Liu Fengqiao, Mao Chusheng, Zhu Jian, Ma Weixin, Li Xuechun, Yang Lin, Wang Shusen, Yang Yi, Cai Xijie, Lin Zunqi, Fan Dianyuan, Wang Shiji, Gu Yuan, Deng Ximing. Review on Development of Shenguang-Ⅱ Laser Facility[J]. Chinese Journal of Lasers, 2019, 46(1): 100002 Copy Citation Text show less
    Layout of SG-Ⅱ laser facility
    Fig. 1. Layout of SG-Ⅱ laser facility
    View of SG-Ⅱ laser facility
    Fig. 2. View of SG-Ⅱ laser facility
    (a) High-contrast pre-shaping pulse from front end; (b) overlay square waves of 11 measurements for amplified pulses
    Fig. 3. (a) High-contrast pre-shaping pulse from front end; (b) overlay square waves of 11 measurements for amplified pulses
    (a) Toothed soft-edge diaphragm; (b) operating principle of laser transmission
    Fig. 4. (a) Toothed soft-edge diaphragm; (b) operating principle of laser transmission
    Pulse energy histograms from eight beams after three-time balance
    Fig. 5. Pulse energy histograms from eight beams after three-time balance
    Bundles array of spatial filters for laser transmission
    Fig. 6. Bundles array of spatial filters for laser transmission
    (a) Operating principle diagram and (b) physical view of coaxial double-pass amplifier
    Fig. 7. (a) Operating principle diagram and (b) physical view of coaxial double-pass amplifier
    (a) Waveforms and (b) energy histogram of 1ω0 pulses from eight beams of SG-Ⅱ after power rebalance with AVM
    Fig. 8. (a) Waveforms and (b) energy histogram of 1ω0 pulses from eight beams of SG-Ⅱ after power rebalance with AVM
    (a) Large aperture Nd∶glass; (b) large aperture bulk absorption calorimeter
    Fig. 9. (a) Large aperture Nd∶glass; (b) large aperture bulk absorption calorimeter
    (a) Target chamber for ICF; (b) target chamber for XRL
    Fig. 10. (a) Target chamber for ICF; (b) target chamber for XRL
    (a) Waveforms and (b) energy histogram of 3ω0 pulses from eight beams after power rebalance
    Fig. 11. (a) Waveforms and (b) energy histogram of 3ω0 pulses from eight beams after power rebalance
    ParameterDiameter/BeamEnergy/DurationWaveformIrradiance uniformity
    Design specification8 beams, 2 combined 2×2 array; ϕ200 mm for master amplifier; ϕ240 mm for FOA1ω0, 1 ns, 6 kJ; 100 ps/800 J; 20 ps/160 J; 3ω0, η>50%Leading edge <300 ps; quasi-square for 750 J per beam±10% (F/3) for ϕ500 μm target surface
    ParameterEnergy fluctuationContrastAngular driftDivergence for 70% energy
    Design specification±15% for 1ω0106 for 1ω0≤5″ RMS≤0.05 mrad
    ParameterPointing accuracyTarget chambersPositional accuracyDuration fluctuation
    Design specification±10 μm at targetFor ICF and XRL±8 μm for target±15%
    Parameter3ω0 requirement for experimentLine focusingOperation capacitySuccess ratefor target shooting
    Design specification1 ns, 3ω0,45° injected into ping hole of 380 μm, total energy ≥2000 JFocal line width ≤80 μm; uniformity ±10%, focal line length 10-30 mm300 shots per year50% for initial; 70% for future; 90% for special experiment
    Table 1. Partial design specifications of SG-Ⅱ laser facility
    ParameterPowerLaser shooting accuracyFront end specification
    PowerunbalanceTargetmirrorPointingpositionAngulardeviationStabilityReshapingdurationFront edge
    Precision SG-Ⅱ5% RMSF/3.314.1 μm RMS3.7″ RMS2% RMS108 ps, 1-3 ns94 ps
    Precision OMEGA5% RMSF/6.230 μm RMS3.5″ RMS2% RMS1-5 ns100 ps
    Table 2. Performance comparison between precision SG-Ⅱ and precision OMEGA laser facilities
    Year2017201620152014201320122011201020092008200620052004
    Total No.868503545530525562540492425254351430340
    Success No.839486527512503513495439396230270372256
    Ratio /%96.796.696.795.895.891.391.789.293.290.277.086.575.3
    Table 3. Statistics shots of SG-Ⅱ laser facility for physical experiments over year
    Zhu Jianqiang, Chen Shaohe, Zheng Yuxia, Huang Guanlong, Liu Renhong, Tang Xianzhong, Zhang Mingke, Xu Zhenhua, Shen Liqing, Chen Qinghao, Peng Zengyun, Zhu Baoqiang, Zhu Qingchun, Tang Yongxing, Zhang Weiqing, Tang Fulin, Liu Fengqiao, Mao Chusheng, Zhu Jian, Ma Weixin, Li Xuechun, Yang Lin, Wang Shusen, Yang Yi, Cai Xijie, Lin Zunqi, Fan Dianyuan, Wang Shiji, Gu Yuan, Deng Ximing. Review on Development of Shenguang-Ⅱ Laser Facility[J]. Chinese Journal of Lasers, 2019, 46(1): 100002
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