雪崩光电二极管
探测器
光电子学
窄带
物理
量子密钥分配
信号(编程语言)
电子线路
干扰(通信)
光子
光子计数
光电探测器
光学
计算机科学
电信
程序设计语言
频道(广播)
量子力学
作者
Zhengyu Yan,Tingting Shi,Yuanbin Fan,Lai Zhou,Zhiliang Yuan
出处
期刊:Advanced devices & instrumentation
[AAAS00]
日期:2023-01-01
卷期号:4
被引量:7
摘要
Gated InGaAs/InP avalanche photodiodes are the most practical device for detection of telecom single photons arriving at regular intervals. Here, we report the development of a compact single-photon detector (SPD) module measured just 8.8 × 6 × 2 cm 3 in size and fully integrated with driving signal generation, faint avalanche readout, and discrimination circuits as well as temperature regulation and compensation. The readout circuit employs our previously reported ultra-narrowband interference circuits (UNICs) to eliminate the capacitive response to the gating signal. We characterize a UNIC-SPD module with a 1.25-GHz clock input and find its performance comparable to its counterpart built upon discrete functional blocks. Setting its detection efficiency to 30% for 1,550-nm photons, we obtain an afterpulsing probability of 2.4% and a dark count probability of 8 × 10 −7 per gate under 3-ns hold-off time. We believe that UNIC-SPDs will be useful in important applications such as quantum key distribution.
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