Influence of Scale Effect of Photodetector on Visibility Measurement Uncertainty

Shaorong Xiao; Bohan Liu; Liufeng Shi; Biao Huang

doi:10.3788/CJL202148.1204001

Journals >Chinese Journal of Lasers >Volume 48 >Issue 12 >Page 1204001 > Article

Chinese Journal of Lasers
Vol. 48, Issue 12, 1204001 (2021)

Influence of Scale Effect of Photodetector on Visibility Measurement Uncertainty

Shaorong Xiao^1,2,3,*, Bohan Liu^1,2, Liufeng Shi³, and Biao Huang³

Author Affiliations

¹Key Laboratory of Laser & Infrared System (Shandong University), Ministry of Education, Qingdao, Shandong 266237, China;

²Center for Optics Research and Engineering (CORE), Shandong University, Qingdao, Shandong 266237, China

³School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China;

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DOI: 10.3788/CJL202148.1204001 Cite this Article Set citation alerts

Shaorong Xiao, Bohan Liu, Liufeng Shi, Biao Huang. Influence of Scale Effect of Photodetector on Visibility Measurement Uncertainty[J]. Chinese Journal of Lasers, 2021, 48(12): 1204001 Copy Citation Text

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Fig. 1. Optical principle of transmission visibility meter

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Fig. 2. Experimental device for performance test of photodiodes

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Fig. 3. Relationship between effective value of output voltage of two kinds of photodetectors and displacement relative to detector center

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Fig. 4. Relationship between responsivity of two kinds of photodetectors and displacement relative to center

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Fig. 5. Relationship between the relative deviation of the responsivity of the two photodetectors with respect to the center responsivity and displacement relative to center

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Fig. 6. Relationship between relative deviation of output voltage of two photodetectors with respect to effective value of central output voltage and displacement

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Distance fromthe center ofthe light spot/mm	Outputvoltage/V	Voltagerelativedeviation/%	Relative deviation of visibility(@V=2 km,L=70 m,β=1.596×10^-3 m^-1) /%	Relative deviation of visibility(@V=2 km,L=30 m,β=1.596×10^-3 m^-1) /%	Relative deviation of visibility (@V=10 km,L=70 m,β=3.912×10^-4 m^-1) /%	Relative deviation of visibility(@V=10 km,L=30 m,β=3.912×10^-4 m^-1) /%
0	2.9880
0.10	2.9878	0.007	0.06	0.15	0.26	0.60
0.20	2.9874	0.021	0.18	0.43	0.75	1.76
0.30	2.9868	0.041	0.37	0.85	1.49	3.48
0.40	2.9860	0.068	0.61	1.41	2.47	5.77
0.50	2.9850	0.101	0.91	2.11	3.70	8.63
0.60	2.9838	0.141	1.27	2.95	5.16	12.05
0.70	2.9824	0.188	1.68	3.93	6.87	16.03
0.80	2.9808	0.241	2.16	5.04	8.82	20.58
0.90	2.9790	0.302	2.70	6.30	11.01	25.69
1.00	2.9770	0.368	3.30	7.69	13.44	31.37
1.10	2.9748	0.441	3.95	9.22	16.12	37.61
1.20	2.9724	0.521	4.67	10.89	19.04	44.42
1.30	2.9698	0.608	5.44	12.69	22.20	51.79
1.40	2.9671	0.701	6.27	14.64	25.60	59.73
1.50	2.9641	0.801	7.17	16.72	29.24	68.23
1.60	2.9609	0.907	8.12	18.95	33.13	77.29
1.70	2.9575	1.020	9.13	21.31	37.25	86.92
1.80	2.9539	1.140	10.20	23.80	41.62	97.12
1.90	2.9502	1.266	11.33	26.44	46.23	107.88
2.00	2.9462	1.399	12.52	29.22	51.09	119.20
2.10	2.9420	1.538	13.77	32.13	56.18	131.09
2.20	2.9377	1.685	15.08	35.18	61.52	143.54
2.30	2.9331	1.837	16.45	38.37	67.10	156.56
2.40	2.9283	1.997	17.87	41.70	72.92	170.14
2.50	2.9234	2.163	19.36	45.17	78.98	184.29

Table 1. Contribution of spot drift on sensitive surface of UV-0^**DQ type photodiode to relative uncertainty of visibility measurement

Distance fromthe center ofthe light spot/mm	Outputvoltage/V	Voltagerelativedeviation/%	Relative deviation of visibility(@V=2 km,L=70 m,β=1.596×10^-3 m^-1) /%	Relative deviation of visibility(@V=2 km,L=30 m,β=1.596×10^-3 m^-1) /%	Relative deviation of visibility (@V=10 km,L=70 m,β=3.912×10^-4 m^-1) /%	Relative deviation of visibility(@V=10 km,L=30 m,β=3.912×10^-4 m^-1) /%
0	2.4270
0.10	2.4266	0.016	0.14	0.33	0.59	1.37
0.20	2.4257	0.054	0.49	1.13	1.98	4.62
0.30	2.4242	0.115	1.03	2.39	4.18	9.76
0.40	2.4222	0.197	1.76	4.12	7.20	16.80
0.50	2.4197	0.302	2.70	6.30	11.02	25.72
0.60	2.4166	0.429	3.84	8.95	15.65	36.53
0.70	2.4130	0.578	5.17	12.07	21.10	49.23
0.80	2.4088	0.749	6.70	15.64	27.35	63.81
0.90	2.4041	0.942	8.43	19.68	34.41	80.29
1.00	2.3989	1.158	10.36	24.18	42.28	98.65
1.10	2.3931	1.396	12.49	29.15	50.96	118.91
1.20	2.3868	1.655	14.82	34.57	60.45	141.05
1.30	2.3800	1.937	17.34	40.46	70.75	165.08
1.40	2.3726	2.242	20.06	46.82	81.86	191.00
1.50	2.3647	2.568	22.99	53.63	93.78	218.81
1.60	2.3562	2.917	26.11	60.91	106.50	248.51
1.70	2.3472	3.287	29.42	68.66	120.04	280.10
1.80	2.3377	3.680	32.94	76.86	134.39	313.57
1.90	2.3276	4.095	36.66	85.53	149.54	348.94
2.00	2.3170	4.532	40.57	94.66	165.51	386.19
2.10	2.3059	4.992	44.68	104.25	182.29	425.33
2.20	2.2942	5.473	48.99	114.31	199.87	466.36
2.30	2.2819	5.977	53.50	124.83	218.26	509.28
2.40	2.2692	6.503	58.21	135.82	237.47	554.09
2.50	2.2559	7.051	63.11	147.26	257.48	600.79

Table 2. Contribution of spot drift on sensitive surface of 2CU^** type photodiode to relative uncertainty of visibility measurement

Shaorong Xiao, Bohan Liu, Liufeng Shi, Biao Huang. Influence of Scale Effect of Photodetector on Visibility Measurement Uncertainty[J]. Chinese Journal of Lasers, 2021, 48(12): 1204001

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