Photodetector array target calibration technology

XiuQing Cai; FengFu Tan; Yi Wu; ZaiHong Hou; LaiAn Qin; Xu Jing; Feng He; SiLong Zhang; ShouChuan Zhang

doi:10.1117/12.2532231

17 May 2019 Photodetector array target calibration technology

XiuQing Cai, FengFu Tan, Yi Wu, ZaiHong Hou, LaiAn Qin, Xu Jing, Feng He, SiLong Zhang, ShouChuan Zhang

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 111700I (2019) https://doi.org/10.1117/12.2532231
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

In order to achieve quantitative measurement of the spatial and temporal distribution of far-field laser spot, it is necessary to solve the calibration problem of the photodetector array target measurement system. For the photodetector array target calibration system, the unit detector is scanned one by one, and the unit detector is regarded as a black box. Its input and output correspond to the voltage pulse amplitude and the energy density of the laser beam respectively, in order to meet the energy density. The measured value of the measured value and the actual value of the project indicator, the segmentation relationship between the energy density of the photodetector and the amplitude of the voltage pulse is derived. The verification test shows that the error of the energy density measurement and the calibration true value of the verification test is less than 15% at a small energy density, and the error is less than 10% at a larger energy density. This calibration method has the advantages of simple operation and high calibration accuracy, and has guiding significance for future photodetector array target calibration technology.

Citation Download Citation

XiuQing Cai, FengFu Tan, Yi Wu, ZaiHong Hou, LaiAn Qin, Xu Jing, Feng He, SiLong Zhang, and ShouChuan Zhang "Photodetector array target calibration technology", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111700I (17 May 2019); https://doi.org/10.1117/12.2532231

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KEYWORDS

Photodetectors

Calibration

Pulsed laser operation

Infrared radiation

Sensors

Imaging systems

Short wave infrared radiation

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