Laser energy distribution on detector under the different incident angle

Y. Wang; G. Wang; Q. Chen; Y. Hao; W. Zhang; H. Li; G. Ren; R. Zhu

doi:10.1117/12.2220178

5 November 2015 Laser energy distribution on detector under the different incident angle

Y. Wang, G. Wang, Q. Chen, Y. Hao, W. Zhang, H. Li, G. Ren, R. Zhu

Proceedings Volume 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015; 97952S (2015) https://doi.org/10.1117/12.2220178
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held June-July 2015, 2015, Hefei, Suzhou, and Harbin, China

Abstract

Laser active suppressing jamming is one of the most important technologies in the domain of electro-optical countermeasures. The propagation direction of laser is not always in the same line with the principal axis of electro-optical imaging system, so it is necessary to investigate laser energy distribution on detector under the different incident angle. This paper toke optical system with wide field of view for example. We firstly analyzed the system’s structure based on the inverting prism and evaluated image quality. Laser energy distribution caused by diffraction effect of optical system was secondly simulated based on Kirchhoff ’s diffraction theory. Thirdly, we built the system’s analysis model of stray light, traced a large number of light propagation, and obtained laser energy distribution on detector caused by scattering effect. At last, combine the above two kinds of energy distribution into total laser energy distribution on detector. According to the detector’s saturated threshold, we can count up the saturated number and evaluate laser disturbing effect. The research results can provide theoretical reference and technical support for evaluating laser disturbing effect of electro-optical imaging system.

Citation Download Citation

Y. Wang, G. Wang, Q. Chen, Y. Hao, W. Zhang, H. Li, G. Ren, and R. Zhu "Laser energy distribution on detector under the different incident angle", Proc. SPIE 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015, 97952S (5 November 2015); https://doi.org/10.1117/12.2220178

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KEYWORDS

Sensors

Laser energy

Diffraction

Prisms

Laser scattering

Imaging systems

Electro optical systems

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