Internal cancellation of spikes using two avalanche photodiodes in series for single photon detection

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 ob...

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Bibliographic Details
Published in:Chinese physics B 2010-08, Vol.19 (8), p.123-126, Article 080308
Main Author: 刘云 吴青林 韩正甫 戴逸民 郭光灿
Format: Article
Language:English
Subjects:
Attenuation
Avalanches
Cancellation
Counting
Indium gallium arsenides
InGaAs
InP
Photodiodes
Photon avalanches
Photons
信噪比
光子雪崩
单光子探测器
效率比
计数率
雪崩光电二极管
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Summary: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.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/8/080308