Internal cancellation of spikes using two avalanche photodiodes in series for single photon detection
Internal cancellation of spikes using two avalanche photodiodes in series for single photon detection
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DOI：
10.1088/1674-1056/19/8/080308
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发表时间：
2010-08
影响因子：
1.7
通讯作者：
Liu Yun;Wu Qing-Lin;Han Zhengfu;Dai Yi-min;Guo Guangcan
中科院分区：
文献类型：
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作者：
Liu Yun;Wu Qing-Lin;Han Zhengfu;Dai Yi-min;Guo Guangcan
本文提出了一种改进InGaAs/InP雪崩光电二极管性能的方法，即用两个串联的雪崩光电二极管作为1550 nm波长的单光子探测器。该方法不衰减原始单光子雪崩信号，因此与现有的结果相比，可以获得更高的信噪比。在213 K下，暗计数率与探测效率之比为1.3×10−4。
We propose a method of improving the performance of InGaAs/InP avalanche photodiodes by using two avalanche photodiodes in series as single photon detectors for 1550-nm wavelength. In this method, the raw single photon avalanche signals are not attenuated, thus a high signal-to-noise ratio can be obtained compared with the existing results. The performance of the scheme is investigated and the ratio of the dark count rate to the detection efficiency is obtained to be 1.3×10−4 at 213 K.