Sub-Geiger mode single-photon detector using a low-dark-current InGaAs avalanche photodiode

Yoshito Miyamoto, Kenji Tsujino, Jun Kataoka, Akihisa Tomita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have developed a single-photon detector that uses an InGaAs avalanche photodiode (APD) operating in sub-Geiger mode. Sub-Geiger mode operation is a technique in which an APD is operated at a bias voltage that is lower than the breakdown voltage. This mode considerably reduces afterpulse probability, and single photons that arrive randomly can be detected. In the present study, we reduced the dark count rate of the sub-Geiger mode single-photon detector by using a low-dark-current InGaAs APD. Consequently, we obtained a dark count rate (DCR) of 5.6 counts per second (cps) with single-photon detection efficiency (SPDE) of 0.2%. Our single-photon detector is comparable in DCR to that of superconducting nanowire single-photon detectors.

Original languageEnglish
Title of host publication2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012
Publication statusPublished - 2012 Dec 1
Event2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012 - Amsterdam, Netherlands
Duration: 2012 Sep 162012 Sep 20

Publication series

NameEuropean Conference on Optical Communication, ECOC

Other

Other2012 38th European Conference and Exhibition on Optical Communications, ECOC 2012
CountryNetherlands
CityAmsterdam
Period12/9/1612/9/20

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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