激光云高仪单光子探测器混合抑制电路研究与设计  

Research and Design of Mixed Inhibition Circuit of Laser Ceilometer Single-Photon Detector

作　　者：亓少帅 张天舒[1] 付毅宾[1] 王欢雪[1] 吕立慧 

机构地区：[1]中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室,安徽合肥230031

出　　处：《大气与环境光学学报》2016年第2期155-160,共6页Journal of Atmospheric and Environmental Optics

基　　金：中国科学院战略性先导科技专项;XDB05040300;国家重大科学仪器设备开发专项;2011YQ120024;国家自然科学基金;41205119;41305126~~

摘　　要：简述单光子探测器对于激光云高仪研究的重要作用。在了解单光子探测器SPAD基本工作原理的基础上,搭建SPAD的被动抑制电路,实验得出SPAD的死时间在2μs以上,只能适用于单光子计数率小于500 kHz的场合。为了减少单光子探测器的死时间,提高单光子计数率,设计了雪崩被动淬灭电压主动恢复的混合抑制电路,通过精密的时序控制,探测器的死时间缩短为100 ns,单光子计数率上升至10MHz。理论上激光云高仪的空间分辨率可达15 m,单光子探测器SPAD混合抑制电路对于激光云高仪的工作性能以及顺利研制有着重要意义。The important role of single-photon detector for laser ceilometers is briefly introduced.On the basis of the basic working principle of single-photon detector（single-photon avalanche diode,SPAD）,a passive suppression circuit of SPAD is built.The experiment shows that the dead time of SPAD is above 2 μs,only applicable to the occasion when single-photon counting rate is less than 500 kHz.In order to shorten the dead time of the single-photon detector,improve single-photon counting rate,the mixed suppression circuit of avalanche passive quenching and voltage active recovery is designed.Through the precise timing control,the dead time of the detector is shortened to 100 ns,single-photon counting rate up to 10 MHz.In theory,the spatial resolution of the laser ceilometer can be up to 15 m,mixed quenching circuit of single-photon detector SPAD for the performance of laser ceilometer and smooth development has important significance.

关 键 词：激光云高仪 单光子探测器 雪崩光电二极管 混合抑制方式 

分 类 号：TH744.5[机械工程—光学工程]