Solar-blind UV signal detection system

Junjie Xiang; Yonglin Bai; Weiwei Cao

doi:10.1117/12.3007712

18 December 2023 Solar-blind UV signal detection system

Junjie Xiang, Yonglin Bai, Weiwei Cao

Proceedings Volume 12963, AOPC 2023: Optical Sensing, Imaging, and Display Technology and Applications; and Biomedical Optics; 1296316 (2023) https://doi.org/10.1117/12.3007712
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

To meet the demand of weak ultraviolet signal acquisition and transmission for solar-blind ultraviolet flame detectors, this paper develops a signal acquisition system based on a β-Ga₂O₃ thin-film photoconductive sensor. Firstly, the weak signal acquisition circuit is designed according to the electrical characteristics of the β-Ga₂O₃ photoconductive sensor. Secondly, real-time data transmission and processing are achieved by using field-programmable gate array (FPGA). Thirdly, the experimental platform of solar-blind UV imaging system is built, and the joint test of the β-Ga₂O₃ photoconductive sensor and the readout electronics system is conducted. The experimental results demonstrate that the system is capable of acquiring, transmitting, and storing the solar-blind UV signal data from a 1×8 pixel array. The sampling rate can reach up to 20 kHz and exhibits stable performance.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Junjie Xiang, Yonglin Bai, and Weiwei Cao "Solar-blind UV signal detection system", Proc. SPIE 12963, AOPC 2023: Optical Sensing, Imaging, and Display Technology and Applications; and Biomedical Optics, 1296316 (18 December 2023); https://doi.org/10.1117/12.3007712

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