21 February 2014 Characteristic research and linearity measurement of photodetectors
Author Affiliations +
To accurately measure the linearity of photodetectors in near-infrared waveband, based on the beam superposition method, a new design idea which use the tow-beam path and correlation methods was proposed. Using the 1053nm laser, and the Si photodetector as the experimental subject, a linearity measurement system of highly accurate photodetectors was designed. This system has over seven orders of magnitude dynamic range. The joint uncertainty is superior to 0.08%. Meanwhile, the linear factor of four different conditions which include the different size of incident beam spots, incident angles, positions and the environment temperature have been measured and analyzed. The experiment shows that the linearity of Si photodetector is ideal when the size of beam spots are bigger, the incident angles are smaller and the environment temperature is lower, moreover, the linearity of margin area is unsatisfactory.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hongchao Hui, Hongchao Hui, Lin Yang, Lin Yang, Xiaoping Ouyang, Xiaoping Ouyang, Guoyang Li, Guoyang Li, Haifeng Lu, Haifeng Lu, Yajing Guo, Yajing Guo, Xiuqing Jiang, Xiuqing Jiang, Baoqiang Zhu, Baoqiang Zhu, Zunqi Lin, Zunqi Lin, "Characteristic research and linearity measurement of photodetectors", Proc. SPIE 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013, 914204 (21 February 2014); doi: 10.1117/12.2054021; https://doi.org/10.1117/12.2054021


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