Design of weak optical signal detection system

Xuhu Ren; Yingying Yang; Hanlin Wang

doi:10.1117/12.3011146

1 November 2023 Design of weak optical signal detection system

Xuhu Ren, Yingying Yang, Hanlin Wang

Proceedings Volume 12917, International Conference on Precision Instruments and Optical Engineering (PIOE 2023); 129170L (2023) https://doi.org/10.1117/12.3011146
Event: 3rd International Conference on Precision Instruments and Optical Engineering (PIOE 2023), 2023, Shanghai, China

Abstract

To address the issue of noise interference in weak light signal detection, this paper presents a fully symmetric differential amplification circuit structure. An equivalent circuit model is constructed to analyze the noise factors affecting circuit performance. The TINA simulation software is employed to simulate the total noise voltage of the system. Subsequently, a weak optical signal detection system is designed using a transimpedance amplifier and an InGaAs-PIN. The system's detection error is compared with that of the foreign variable gain low noise current amplifier (DLPCA-200). Experimental results demonstrate that the proposed circuit structure effectively reduces system noise, enabling accurate detection of weak light signals.

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

Citation Download Citation

Xuhu Ren, Yingying Yang, and Hanlin Wang "Design of weak optical signal detection system", Proc. SPIE 12917, International Conference on Precision Instruments and Optical Engineering (PIOE 2023), 129170L (1 November 2023); https://doi.org/10.1117/12.3011146

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