Linearity of quadrant avalanche photodiode in laser tracking system |
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| Authors: | Leihong Zhang Yan Yang Wenbing Xia Xiaolei Zhu Weibiao Chen Yutian Lu |
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| Institution: | 1. Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;College of Mechanical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China
2. Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China |
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| Abstract: | The tracking precision of laser tracking system is affected by the angular resolution of quadrant avalanche photodiode.According to the detecting principle of quadrant avalanche photodiode,the light spot area,the optical intensity distribution,the non-uniformity of response,and the signal-to-noise ratio (SNR) that affect the linearity of the detector are studied.The light optical spot area and the optical intensity distribution can be adjusted through software.The non-uniformity of response and the SNR are ... |
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