Research on phase detection on two-dimensional position sensitive detector

Feng Xi; Lan Qin; Lian Xue; Tengjiao Wu

doi:10.1117/12.864545

22 October 2010 Research on phase detection on two-dimensional position sensitive detector

Feng Xi, Lan Qin, Lian Xue, Tengjiao Wu

Proceedings Volume 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology; 76581D (2010) https://doi.org/10.1117/12.864545
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

Position sensitive detector (PSD) is based on the lateral photoelectric effect (LPE) to produce an electrical. The photocurrents output from the electrodes, so the amplitude and phase of the output signal are related to the distance between the light spot and the electrodes. The information of the phase was detached from photocurrent signal. The diversification of phase along with the distance was analyzed, and phase difference between the corresponding electrode signal current as well as the associated difference with the change of PSD related parameters. The result of experiment on one-dimensional and two-dimensional PSD is shown that the position detection error and the linearity all can meet the test requirements.

Citation Download Citation

Feng Xi, Lan Qin, Lian Xue, and Tengjiao Wu "Research on phase detection on two-dimensional position sensitive detector", Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 76581D (22 October 2010); https://doi.org/10.1117/12.864545

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