Infrared and Laser Engineering, Volume. 49, Issue 6, 20190466(2020)
Closed-loop control method of optical fiber positioning of center-opening four-quadrant detector
Figures & Tables(9)
Fig. 1. Schematic diagram of the focal plane structure of the 4-Q detector
Fig. 4. Schematic diagram of the virtual area of the center-drilling on the 4-Q detector
Fig. 5. P-P plot of the measured data
Table 1. Measurement data of the beam waist radius
View tableView in ArticleTable 1. Measurement data of the beam waist radius
No. V R-L V T-B V SUM /VX /mmY /mmA0001 −0.113 −0.002 0.662 −0.681 −0.015 A0002 −0.112 −0.004 0.674 −0.666 −0.021 A0003 −0.113 −0.005 0.670 −0.676 −0.027 … … … … … … A1500 −0.111 −0.002 0.665 −0.669 −0.012
Table 2. Experimental results of waist radius determination
View tableView in ArticleTable 2. Experimental results of waist radius determination
V R-L V T-B V SUM /VX /mmY /mmV R /V SUM R /mm−0.112 0.003 0.667 −0.673 −0.018 0.416 3.17 −0.278 0 0.679 −1.639 0.003 0.295 3.04 0.255 0 0.672 1.517 −0.003 0.690 3.05
Table 3. Center-opening 4-Q detector simulation sampling data
View tableView in ArticleTable 3. Center-opening 4-Q detector simulation sampling data
No. V R-L V T-B V SUM /V X /mmY /mmD0001 0.003 −0.004 0.652 0.017 −0.021 D0002 0.003 −0.004 0.650 0.020 −0.022 D0003 0.002 −0.002 0.650 0.014 −0.015 … … … … … … D2000 0.001 −0.004 0.648 0.007 −0.022
Table 4. Simulation results of the center-drilled 4-Q detector
View tableView in ArticleTable 4. Simulation results of the center-drilled 4-Q detector
R 2/μm2V L /V SUM V T /V SUM X' /mmY' /mmEr (X )/mmEr (Y )/mm0 0.501 88 0.497 38 0.014 5 −0.020 1 −0.000 5 0 200 0.501 88 0.497 36 0.014 5 −0.020 1 −0.000 5 0 300 0.501 89 0.497 32 0.014 6 −0.020 4 −0.000 4 −0.000 3 400 0.501 93 0.497 32 0.015 0 −0.020 6 0 −0.000 5 500 0.501 99 0.497 23 0.015 5 −0.021 2 0.000 5 −0.001 1 600 0.502 06 0.497 08 0.016 0 −0.022 3 0.001 0 −0.002 2 700 0.502 18 0.496 90 0.016 9 −0.023 7 0.001 9 −0.003 6 800 0.502 20 0.496 76 0.017 1 −0.024 8 0.002 1 −0.004 7 900 0.502 33 0.496 42 0.018 2 −0.025 5 0.003 2 −0.005 4 1 000 0.502 39 0.496 22 0.018 8 −0.026 0 0.003 8 −0.005 9
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Linzheng Wang, Hua Zou, Shuo Huang, Hang Zhang, Shiyu Zhao. Closed-loop control method of optical fiber positioning of center-opening four-quadrant detector[J]. Infrared and Laser Engineering, 2020, 49(6): 20190466
Paper Information
Category: Photoelectric measurement
Received: Mar. 5, 2020
Accepted: --
Published Online: Aug. 19, 2020
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