光学精密工程2025，Vol.33Issue(21)：3352-3363,12.DOI:10.37188/OPE.20253321.3352
低噪声高帧频短波红外成像系统设计
Design of low-noise high-frame-rate short-wave infrared imaging system
摘要
Abstract
To meet the demands for low noise and high linearity in ground-based,large-aperture short-wave infrared(SWIR)imaging systems and to circumvent international constraints on scientific-grade SWIR imaging while expediting project timelines,a cooled SWIR imaging system based on an InGaAs fo-cal plane array(FPA)was developed.The system architecture was first established,followed by the de-sign of a low-noise hardware circuit incorporating thermoelectric cooling(TEC)to minimize readout noise and dark current.An FPGA-based sensor drive circuit and an optimized image readout and data-transmis-sion program were implemented to realize a prototype.Experimental results indicate stable operation at-10℃with a maximum full-frame output rate of 116 frames per second.In low-,medium-,and high-gain modes,noise levels of 364.87 e-,40.66 e-,and 15.73 e-were measured,respectively,together with excellent linearity and response uniformity.The system demonstrates robust performance and produc-es high-quality images in both indoor and outdoor environments,satisfying specifications for scientific-grade detectors.关键词
短波红外/现场可编程门阵列/成像驱动电路/半导体制冷Key words
shortwave infrared/Field Programmable Gate Array(FPGA)/imaging driving circuit/Thermoelectric Cooling(TEC)分类
信息技术与安全科学引用本文复制引用
任同阳,贾建禄,于勇,刘塔拉,郭鹏飞,李学良,马爽,陈姝岐..低噪声高帧频短波红外成像系统设计[J].光学精密工程,2025,33(21):3352-3363,12.基金项目
国家自然科学基金资助项目(No.12122304,No.12303085,No.12473085) （No.12122304,No.12303085,No.12473085）
