Acta Physica Sinica, Volume. 68, Issue 23, 234205-1(2019)
Figures & Tables(14)
Fig. 3. Formation of atmospheric turbulence phase screen.大气湍流相位屏示意
Fig. 5. Intensity distribution of two dimensions: (a) Before correcting tilt aberration; (b) after correcting tilt aberration.二维光强分布 (a) 倾斜像差校正前; (b) 倾斜像差校正后
Fig. 6. Intensity distribution of one dimension: (a) Central section in
Fig. 7. The beam quality at 2 km corresponding to different coherence lengths: (a) PIB; (b) SR.2 km处不同大气相干长度的激光光束质量 (a) PIB; (b) SR
Fig. 8. The beam quality at 3 km corresponding to different coherence lengths: (a) PIB; (b) SR3 km处不同大气相干长度的激光光束质量 (a) PIB; (b) SR
Fig. 10. Measurement results of beam quality analyzer: (a) Before correcting tilt aberration; (b) after correcting tilt aberration.光束质量分析仪测量结果 (a) 倾斜像差校正前; (b) 倾斜像差校正后
Table 1.
Coefficient of tilt aberration in each sub-wavefront.
子波前倾斜像差系数
View tableView in ArticleTable 1.
Coefficient of tilt aberration in each sub-wavefront.
子波前倾斜像差系数
子波前序数 X向倾斜系数TX Y向倾斜系数TY ① 4.24 3.31 ② –0.66 –6.20 ③ 4.92 –2.09 ④ 4.99 2.60 ⑤ 6.20 0.48 ⑥ 0.62 2.52 ⑦ –3.62 0.36
Table 2.
Result of the beam quality in far-field.
激光远场光束质量计算结果
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Result of the beam quality in far-field.
激光远场光束质量计算结果
评价指标 类型 子波前倾斜像差 校正前 子波前倾斜像差 校正后 PIB 0.30 0.64 SR 0.21 0.63
Table 3. Experimental condition.
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参数类型 指标值 温度/℃ 28 湿度/% 62 风速/ $\rm m\cdot s^{-1} $ < 4 大气能见度/km > 23 大气相干长度/cm 19
Table 4. Calculation results of spot parameters.
View tableView in ArticleTable 4. Calculation results of spot parameters.
光斑参数 子波前倾斜像差 校正前 子波前倾斜像差 校正后 相对峰值强度Im/cnt 2944 4053 环围直径D(4σ)/mm 108 89
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Wan-Tao Deng, Gang Zhao, Hui-Jun Xia, Mao Zhang, Yi-Fan Yang.
Paper Information
Received: Jun. 20, 2019
Accepted: --
Published Online: Sep. 17, 2020
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