1.5 GHz single-photon detection at telecommunication wavelengths using sinusoidally gated InGaAs/InP avalanche photodiode

Opt Express. 2009 Apr 13;17(8):6275-82. doi: 10.1364/oe.17.006275.

Abstract

We report a telecom-band single-photon detector for gigahertz clocked quantum key distribution systems. The single-photon detector is based on a sinusoidally gated InGaAs/InP avalanche photodiode. The gate repetition frequency of the single-photon detector reached 1.5 GHz. A quantum efficiency of 10.8 % at 1550 nm was obtained with a dark count probability per gate of 6.3 x 10(-7) and an afterpulsing probability of 2.8 %. Moreover, the maximum detection rate of the detector is 20 MHz.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arsenicals / chemistry*
  • Arsenicals / radiation effects
  • Computer-Aided Design
  • Equipment Design
  • Equipment Failure Analysis
  • Indium / chemistry*
  • Indium / radiation effects
  • Microwaves
  • Phosphines / chemistry*
  • Phosphines / radiation effects
  • Photometry / instrumentation*
  • Photons
  • Reproducibility of Results
  • Semiconductors*
  • Sensitivity and Specificity
  • Telecommunications / instrumentation*

Substances

  • Arsenicals
  • Phosphines
  • Indium
  • indium arsenide
  • indium phosphide