量子通信中SAGM型单光子探测器性能分析  

Analysis on the Characters of SAGM Single-Photon Detectors in Quantum Communication

作　　者：彭建[1] 冯雪冬[1] 杨伯君[1] 于丽[1] 

机构地区：[1]北京邮电大学理学院

出　　处：《半导体技术》2006年第11期851-855,共5页Semiconductor Technology

基　　金：国家自然科技基金项目(60378011;60578043);北京市教委共建项目(XK100130537)

摘　　要：分析了InGaAs/InP光电雪崩二极管(SAGM-APD)在红外电信波段应用中的优良特性,阐述了在实际应用中一些关键参数和设计制造中的一些重要问题。在800～1700nm波段,为了实现单光子探测,SAGM-APD应采用“盖格”工作模式并且论述了其中面临的一些问题。论述了量子保密通信中的门模抑制电路的工作原理及其工作过程中采用符合电路消除暂态信号的方法。The super characters of InGaAs/InP SAGM-APD in infrared communication wavelengths were analyzed. The key parameters in practical use and some issues in design were pointed out. The so-called Geiger mode for detecting single-photon at 800- 1700 nm was used, and some remarkable problems were introduced. The principal and scheme of gated-mode quench circuit for the quantum key distribution, and the suppressing of transient signals by the use of coincidence circuit were described.

关 键 词：雪崩光电二极管 单光子探测器 门模抑制电路 量子通信 

分 类 号：TN312.7[电子电信—物理电子学] TN911.74