Development of 512 × 2-element InGaAs spectral sensor IoT node
Received:October 27, 2020  Revised:July 12, 2021  download
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Author NameAffiliationE-mail
KE Peng-Yu State Key Laboratories of Transducer Technology Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083 China
Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China
University of Chinese Academy of Sciences Beijing 100049 China 
kepengyu@mail.sitp.ac.cn 
LIU Meng-Xuan State Key Laboratories of Transducer Technology Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083 China
Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China
University of Chinese Academy of Sciences Beijing 100049 China
Shanghai Tech University Shanghai 201210 China 
 
WANG Xu-Quan State Key Laboratories of Transducer Technology Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083 China
Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China
University of Chinese Academy of Sciences Beijing 100049 China 
 
HUANG Song-Lei State Key Laboratories of Transducer Technology Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083 China
Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China 
huangsl@mail.sitp.ac.cn 
ZHANG Yong-Gang State Key Laboratories of Transducer Technology Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083 China
Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China 
 
FANG Jia-Xiong State Key Laboratories of Transducer Technology Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083 China
Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China 
 
Abstract:Based on a 512 × 2-element InGaAs spectrum module, a new spectral-sensing IoT node is developed. The detector uses two parallel column structure with 25 μm pixel pitch. In order to reduce the impact on an abnormal response to a single pixel, the data onto two channels is averaged in the circuit. The experimental results show that the test wavelength range of this node is 976~1700 nm, and the spectral resolution is 13.5 nm. The wavelength accuracy is better than 3.2 nm, and the wavelength repeatability is better than 0.3 nm. The dynamic range is 2300:1, and the absorbance repeatability is 0.0011 AU. The baseline stability of light source is better than 0.0001 A/h. The function of the sensor node was verified by using alcoholic beverages samples of different nominal concentrations.
keywords:short-wave infrared  spectral-node  LVF  InGaAs detector
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《Journal of Infrared And Millimeter Waves》