Infrared and Laser Engineering, Volume. 50, Issue 5, 20200313(2021)
Influencing factors analysis of supercontinuum laser monochromator in calibration of polarization remote sensors
Figures & Tables(14)
Fig. 2. Calibration facility based on supercontinuum laser monochromator
Fig. 3. Relative spectral responsivity of 490 nm, 670 nm and 910 nm polarization channel
Fig. 4. Relative spectral responsivity of broadband polarization remote sensor
Fig. 6. System-level calibration facility for relative spectral responsivity
Fig. 7. Relative spectral responsivity of 490 nm, 670 nm and 910 nm polarization channel
Fig. 8. Relative spectral responsivity of broadband polarization remote sensor
Fig. 10. Variation of remote sensor output with degree of linear polarization and phase angle under different polarization states
Table 1. Measurement results of monochromator output polarization
View tableView in ArticleTable 1. Measurement results of monochromator output polarization
Wavelength/nm Iλ Qλ Uλ Pλ βλ 450 125.09 −6.41 15.59 0.135 −33.82 500 142.38 5.51 10.24 0.082 30.86 550 141.17 −8.01 17.63 0.137 −32.78 600 86.3 33.43 6.43 0.394 5.44 650 61.14 7.42 7.14 0.168 21.95 700 51.35 2.43 −2.33 0.066 −21.90 750 67.58 18.03 5.71 0.280 8.79 800 44.25 11.01 −3.11 0.259 −7.89 850 42.16 14.25 −0.90 0.339 −1.81 900 46.98 21.36 −2.15 0.457 −2.87 950 55.13 29.61 −2.23 0.539 −2.15 1000 45.34 27.07 −2.04 0.599 −2.15 1050 37.23 24.32 −2.09 0.656 −2.46 1100 15.08 10.5 −0.24 0.696 −0.65
Table 2. Measurement results of integrating sphere source polarization
View tableView in ArticleTable 2. Measurement results of integrating sphere source polarization
Wavelength/nm Iλ Qλ Uλ Pλ βλ 450 4.39 −0.11 −0.03 0.026 7.63 500 7.50 −0.15 −0.04 0.021 7.47 550 8.15 −0.20 −0.05 0.025 7.02 600 8.37 −0.19 −0.05 0.023 7.37 650 16.34 −0.4 −0.12 0.026 8.35 700 19.29 −0.48 −0.13 0.026 7.58 750 24.24 −0.54 −0.14 0.023 7.27 800 17.95 −0.36 −0.09 0.021 7.02 850 15.17 −0.35 −0.09 0.024 7.21 900 12.83 −0.31 −0.08 0.025 7.24 950 15.22 −0.23 −0.06 0.016 7.31 1000 11.5 −0.22 −0.06 0.020 7.63 1050 7.76 −0.07 −0.02 0.009 7.97 1100 2.86 0.04 0.01 0.014 7.02
Table 3. Calibration results of channel spectral responsivity with or without integrating sphere
View tableView in ArticleTable 3. Calibration results of channel spectral responsivity with or without integrating sphere
0° 60° 120° Channel/nm Center wavelength /nm Bandwidth /nm Center wavelength /nm Bandwidth /nm Center wavelength /nm Bandwidth /nm Non-uniformity ρ Without integrating sphere 490 490.64 19.21 490.72 17.95 490.55 18.85 0.91% 670 670.48 18.48 670.03 14.94 670.77 18.87 4.25% 910 910.39 18.69 910.27 18.83 910.47 19.02 1.06% With integrating sphere 490 489.71 19.62 489.69 19.60 489.68 19.55 0.15% 670 669.48 19.31 669.41 19.22 669.39 19.19 0.47% 910 908.53 19.44 908.64 19.43 908.57 19.43 0.57%
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Chenyu Xie, Wenchao Zhai, Xiaopeng Hao, Linlin Xie, Yan Liu, Jianjun Li, Xiaobing Zheng. Influencing factors analysis of supercontinuum laser monochromator in calibration of polarization remote sensors[J]. Infrared and Laser Engineering, 2021, 50(5): 20200313
Paper Information
Category: Photoelectric measurement
Received: Dec. 5, 2020
Accepted: --
Published Online: Aug. 13, 2021
The Author Email: Xiaobing Zheng (xbzheng@aiofm.ac.cn)
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