Double balanced differential configuration for high speed InGaAs/InP single photon detector at telecommunication wavelengths  

作　　者：郑福 朱阁 刘雪峰 王超 孙志斌 翟光杰 

机构地区：[1]Key Laboratory of Electronics and Information Technology for Space Systems, Center for Space Sciences and Applied Research, Chinese Academy of Sciences [2]University of Chinese Academy of Sciences [3]College of Physics, Beijing Institute of Technology

出　　处：《Optoelectronics Letters》2015年第2期121-124,共4页光电子快报（英文版）

基　　金：supported by the National Key Scientific Instrument and Equipment Development Project of China(No.2013YQ030595);the National High Technology Research and Development Program of China(No.2013AA122902);the National Natural Science Foundation of China(No.61274024);National Natural Science Foundation of China for the Youth(No.40804032)

摘　　要：In this paper,we present an innovative method of double balanced differential configuration,in which two adjacent single photon avalanche diodes(SPADs)from the same wafer are configured as the first balanced structure,and the output signal from the first balanced stage is subtracted by the attenuated gate driving signal as the second balanced stage.The compact device is cooled down to 236 K to be characterized.At a gate repetition rate of 400 MHz and a1 550 nm laser repetition rate of 10 MHz,the maximum photon detection efficiency of 13.5%can be achieved.The dark count rate is about 10-4 ns-1 at photon detection efficiency of 10%.The afterpulsing probability decreases with time exponentially.It is shown that this configuration is effective to discriminate the ultra-weak avalanche signal in high speed gating rates.

关 键 词：Avalanche diodes PHOTODETECTORS PHOTONS Signal detection 

分 类 号：TN929.1[电子电信—通信与信息系统]