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arXiv · 0704.3828

An integral gated mode single photon detector at telecom wavelengths

Zhengjun Wei·Peng Zhou·Xiaobao Liu·Jindong Wang·Changjun Liao·Jianping Guo·Rihao Li·Songhao Liu
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Abstract

We demonstrate an integral gated mode single photon detector at telecom wavelengths. The charge number of an avalanche pulse rather than the peak current is monitored for single-photon detection. The transient spikes in conventional gated mode operation are canceled completely by integrating, which enables one to improve the performance of single photon detector greatly with the same avalanche photodiode. This method has achieved a detection efficiency of 29.9% at the dark count probability per gate equal to 5.57E-6/gate (1.11E-6/ns) at 1550nm.

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Zhengjun Wei, Peng Zhou, Xiaobao Liu, Jindong Wang, Changjun Liao, Jianping Guo, Rihao Li, Songhao Liu. 2007-04-29. An integral gated mode single photon detector at telecom wavelengths. https://doi.org/10.1088/0022-3727%2F40%2F22%2F011

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