An integral gated mode single photon detector at telecom wavelengths

Details An integral gated mode single photon detector at telecom wavelengths An integral gated mode single photon detector at telecom wavelengths

2007-04-29

arxiv.org/abs/0704.3828v1

Physics

Optics

word to PDF, 3 pages with 4 figures

Scientific paper

10.1088/0022-3727/40/22/011

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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