一体化EMCCD微光相机的设计  

Design of Integrated EMCCD Camera for Low-Light Detection

作　　者：何家维[1] 何昕[1] 魏仲慧[1] 梁国龙[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《红外》2014年第10期14-19,45,共7页Infrared

基　　金：中国科学院知识创新工程领域前沿项目

摘　　要：电子倍增电荷耦合器件(E1ectron Multiplying Charge Coupled Device,EMCCD)是一种新型高灵敏度图像传感器。近年来,EMCCD相机在微光探测领域的应用越来越广泛。为了在微光相机中应用新型EMCCD器件,设计了一种探测能力强、数据更新快、具有一体化光纤接口的微光成像系统。主要研究了EMCCD相机的设计方法,说明了EMCCD的工作原理,论述了基于TC253SPD—BO的EMCCD微光相机的设计方案。用成像实验和信噪比测试实验验证了所设计的一体化微光相机的性能。结果表明,该相机不仅可以实现20km以上的数据传输和30f/s的拍摄帧频,而且还可实现弱光条件下的探测功能,并具有较高的系统信噪比。Electron Multiplying Charge Coupled Devices（EMCCD） are new high-sensitivity image sensors.In recent years,EMCCD cameras are used in the field of low-light detection more widely.To use the new EMCCD in a low light camera,a low light imaging system with strong detection ability,fast data updating ability and an integrative fiber optical interface is designed.The design method of the EMCCD camera is studied mainly.The operation principle of the EMCCD is explained.The design scheme of the EMCCD low light camera based on a TC253SPD-B0 chip is presented.The performance of the integrative low light camera is verified in both an imaging experiment and a signal-to-noise ratio measurement experiment.The results show that the camera not only can implement the data transmission in a distance of more than 20 km and the frame frequency of 30 f/s,but also can implement detection under the condition of low light.It has a higher signal-to-noise ratio.

关 键 词：EMCCD 微光探测 相机 光纤 

分 类 号：TN386.5[电子电信—物理电子学]