基于硅雪崩光电二极管的紫外盖革模式电路的研制  

Development of Geiger Mode Circuit with Silicon Avalanche Photodiode for Ultraviolet Optical Communication

作　　者：邢怀昌 许金通[1,3] 李向阳[1,3] XING Huaichang;XU Jintong;LI Xiangyang(State Key Laboratory of Transducer Technology,Shanghai Institute of Technical Physics of The Chinese Academy of Sciences,Shanghai 200083,China;Key Laboratory of Infrared Imaging Materials and Devices,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China;Information Institute,Shanghai Tech University,Shanghai 201210,China)

机构地区：[1]中国科学院上海技术物理研究所传感技术国家重点实验室,上海200083 [2]上海科技大学信息学院,上海201210 [3]中国科学院上海技术物理研究所红外成像材料与器件重点实验室,上海200083

出　　处：《红外技术》2018年第10期966-971,共6页Infrared Technology

基　　金：国家自然科学基金(61106097;61204134;11304335)

摘　　要：本文旨在研制盖革模式电路并在两种紫外光照射下测试电路性能,为紫外通信提供数据参考。研制了适用于硅雪崩光电二极管(APD)的主动、被动两种盖革模式电路,设计并实现了输出可调至300.0 V的高稳定直流高压偏置电源,实测纹波电压小于20.4 m V,纹波系数小于6.8×10-5。分别在可见盲和日盲两种紫外光照下,测试了被动盖革模式APD的死时间、暗计数和光子计数,给出了被动盖革模式工作的较佳高压偏置范围;紫外光照下,被动盖革模式APD的电路输出脉冲的死时间为1.0?s。基于被动盖革模式电路测试的参数,研制了主动盖革模式电路,实验结果表明:主动盖革模式电路输出脉冲的死时间为102.0 ns,光子计数的上限由被动盖革模式的1.0 MHz提高到主动盖革模式的9.8MHz。因此主动盖革模式电路在数据传输时有更高的传输带宽,预计可满足一些图像传输或者视频通信的基本要求。This paper aims to develop a Geiger mode circuit that is tested under two kinds of ultraviolet light, providing a data reference for ultraviolet communication. Active and passive Geiger mode circuit systems are designed based on silicon APD and given the solution of high-voltage APD bias. High-stability, high-voltage DC bias power was designed that can supply output to 300 V. The measured ripple of the high-voltage DC solution is less than 20.4 mV, and the ripple coefficient is less than 6.8 ×10^-5. The passive Geiger mode circuit system with visible-blind UV and solar-blind UV（two ultraviolet LED light sources） is tested, and the counts and dead time are obtained. The operating range of the optimal bias voltage VG in the passive Geiger mode circuit under two kinds of UV light sources is given. The output pulse dead time of the passive Geiger mode circuit that used a UV light source is 1 μs. The output pulse dead time of the active Geiger mode circuit with a solar-blind UV light source is 102 ns. Theoretically, the active Geiger mode circuit has a higher transmission bandwidth with respect to the passive Geiger mode circuit, and the upper limit of the count rate is increased from 1.0 MHz to 9.8 MHz. This meets the requirements for UV image transmission and video communication.

关 键 词：雪崩光电二极管 盖革模式 紫外 死时间 暗计数 

分 类 号：TN219[电子电信—物理电子学]