Xutong Li, Xiaoping Ouyang, Xuejie Zhang, Zhan Li, Liangze Pan, Yingming Xu, Lin Yang, Baoqiang Zhu, Jian Zhu, Jianqiang Zhu. Single Calibration Technique of Autocorrelator Based on a Flat Crystal[J]. Chinese Journal of Lasers, 2021, 48(7): 0704002
- Chinese Journal of Lasers
- Vol. 48, Issue 7, 0704002 (2021)
Fig. 1. Single calibration optical path diagram of picosecond autocorrelator based on flat crystal
Fig. 2. Theoretical CCD signal distribution in the calibration experiment
Fig. 3. Analysis of the deviation of the flat crystal placement angle α. (a) Deflection of flat crystal placement angle; (b) beam shift on the surface of autocorrelation crystal
Fig. 4. Variation curve of relative error δ with deflection angle α
Fig. 5. Experimental data analysis. (a) Autocorrelation signal detected on the CCD; (b) normalized longitudinal integrated intensity
Fig. 6. CCD longitudinal integral signal strength during calibration with different methods
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Table 1. Amount of change in the thickness h, refractive index n, deflection angle α of the flat crystal (the relative error of time resolution is 2%,5%,10%)
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Table 2. Measurement data of thickness h of flat crystal
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Table 3. Statistics of time resolution calibration results of the three calibration methods
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Table 4. Performance comparison of three calibration methods
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