用于单光子探测的APD的低温特性  

Low Temperature Characteristics of Avalanche Photodiodes for Single-photon Detecting

作　　者：冯金垣[1] 吕华[1] 崔迎超[1] 黄静[1] 

机构地区：[1]华南理工大学应用物理系,广东广州510640

出　　处：《半导体光电》2004年第3期174-176,共3页Semiconductor Optoelectronics

基　　金：国家"973"计划资助项目(001CB309302)

摘　　要：　采用半导体致冷技术,对雪崩光电二极管(APD)快速降温,最低温度可达到-35℃,并对其低温特性进行了测试。结果表明:APD在低温下工作其雪崩电压下降,暗电流噪声降低,解决了量子密码通信中的红外单光子探测的一个关键技术点。Thermoelectric cooling is used to cool the avalanche photodiodes rapidly, and can achieve the lowest temperature: -35 ℃. The low temperature characteristics tested show that its avalanche voltage and current noise decrease under the condition of low temperature. The designing approach resolves a key point for single-photon detecting.

关 键 词：半导体致冷 雪崩光电二极管(APD) 单光子探测 低温特性 

分 类 号：TN364.2[电子电信—物理电子学]