High-speed InGaAs/InP-based single-photon detector with high efficiency

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Abstract

An efficient single-photon detector at telecom wavelength of 1.55 μm was realized with an InGaAs/InP avalanche photodiode at -30°C. By implementing a short gating pulse and optimizing the self-differencing circuit, a detection efficiency of 29.3% was achieved with an error count probability of 6% at the gating frequency of 200 MHz, paving the way for the high-efficiency and low-noise fast detection of the infrared single photons.

Original languageEnglish
Article number161106
JournalApplied Physics Letters
Volume94
Issue number16
DOIs
StatePublished - 2009
Externally publishedYes

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